INTEGRATED ORTHOPEDICS INC
8-K, 1998-01-02
HEALTH SERVICES
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<PAGE>
 
                      SECURITIES  AND EXCHANGE COMMISSION

                            WASHINGTON, DC    20549

                                   FORM 8-K

                                CURRENT REPORT


                      PURSUANT TO SECTION 13 OR 15(D) OF
                      THE SECURITIES EXCHANGE ACT OF 1934


      Date of Report (Date of earliest event reported): December 18, 1997

                         INTEGRATED ORTHOPAEDICS, INC.
         ------------------------------------------------------------
            (Exact name of registrant as specified in its charter)

                                     TEXAS
                                     -----
                (State or other jurisdiction of incorporation)


               1-10677                                     76-0203483
               -------                                     ----------
      (Commission File Number)                          (I.R.S. Employer
                                                        Identification No.)


                          5858 Westheimer, Suite 500
                             Houston, Texas  77057
                             ---------------------
                    (Address of principal executive office,
                              including zip code)

      Registrant's telephone number, including area code:  (713) 225-5464

         ------------------------------------------------------------
         (former name or former address, if changed since last report)

The Exhibit Index is located at page    4   .
                                     ------- 

                                       1
<PAGE>
 
ITEM 2.  ACQUISITION OR DISPOSITION OF ASSETS.


On December 18, 1997, Integrated Orthopaedics, Inc. acquired (i) the accounts
receivable and (ii) (a) 70% of the outstanding capital stock of Lancaster
Orthopedic Group, Inc. ("LOG, Inc.") and (b) the irrevocable right to acquire
the remaining 30% of the outstanding capital stock of LOG, Inc. on the same
financial terms as the 70% of the capital stock acquired at the time of the
transaction.  The Company anticipates acquiring one-half of the remaining 30% of
the LOG, Inc. stock in January 1998 and the balance of the outstanding LOG, Inc.
stock in July 1998.  At the time of the transaction, LOG, Inc. entered into a
long-term management agreement with the medical practice conducted by Lancaster
Orthopedic Group, P.C., ("LOG, PC"), an eleven-physician orthopaedic medicine
practice located in Lancaster, Pennsylvania.  Including the consideration the
Company has delivered into trust to fund the anticipated acquisition of the
remaining 30% of the LOG, Inc. stock, the Company delivered aggregate
consideration of approximately $11,847,000, including (i) cash and estimated
transaction costs of approximately $10,085,000 and (ii) 362,502 shares of the
Company's common stock.  In connection with the transaction, the Company also
agreed to undertake operating leases covering the facilities from which LOG,
Inc. had historically rendered its medical services.  The use of these
facilities will be provided to LOG, PC pursuant to the Company's obligations
under the management agreement.  The purchase price was determined after arms-
length negotiations between the Company and the physician owners of LOG, Inc.
The cash portion of the transaction was funded from the Company's existing cash
reserves.


ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS.


     Pro forma financial information.

         To be filed on Form 8-K/A as soon as practicable, but not later than
         60 days after this Form 8-K is filed.


     Exhibits.

         99.01*  Stock Purchase Agreement by and among Integrated Orthopaedics,
                 Inc., Wayne Conrad, MD, J. Paul Lyet, MD, Timothy Tymon, MD,
                 Raymond Peart, MD, I. Stanley Porter, MD, Gary Zartman, MD, and
                 Mark K. Perezous, MD dated December 15, 1997.

     *   Schedules and exhibits have been omitted from the above listed
     agreement. The Company agrees to furnish a supplementary copy of any
     omitted exhibit or schedule to the Securities and Exchange Commission upon
     request.

                                       2
<PAGE>
 
                                  SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, hereunto duly authorized.

                                      INTEGRATED ORTHOPAEDICS, INC.
                                         (Registrant)



Date:  January 2, 1998                By /s/ Ronald E. Pierce
                                        -------------------------
                                        Ronald E. Pierce
                                        President

                                       3
<PAGE>
 
                                 EXHIBIT INDEX
                                 -------------


Exhibit No.        Description                                         
- -----------        -----------                                         
   99.01           Stock Purchase Agreement by and among               
                   Integrated Orthopaedics, Inc., Wayne
                   Conrad, MD, J. Paul Lyet, MD, Timothy
                   Tymon, MD, Raymond Peart, MD, I. Stanley
                   Porter, MD, Gary Zartman, MD, and Mark
                   K. Perezous, MD dated December 15, 1997.
 

                                       4

<PAGE>
 
                            STOCK PURCHASE AGREEMENT

                                  BY AND AMONG

                         INTEGRATED ORTHOPAEDICS, INC.

                               WAYNE CONRAD, M.D.

                               J. PAUL LYET, M.D.

                              TIMOTHY TYMON, M.D.

                              RAYMOND PEART, M.D.

                            I. STANLEY PORTER, M.D.

                               GARY ZARTMAN, M.D.

                             MARK K. PEREZOUS, M.D.



                               DECEMBER 15, 1997
<PAGE>
 
                               TABLE OF CONTENTS

                                                                         Page
                                                                         ----

1.   DEFINITIONS........................................................   1
          "Acquisition Price"...........................................   1
          "Acquired Company"............................................   1
          "Affiliate"...................................................   1
          "Applicable Contract".........................................   1
          "Best Efforts"................................................   2
          "Breach"......................................................   2
          "Buyer".......................................................   2
          "Closing".....................................................   2
          "Closing Date"................................................   2
          "Code"........................................................   2
          "Consent".....................................................   2
          "Contemplated Transactions"...................................   2
          "Contract"....................................................   3
          "Damages".....................................................   3
          "Employment Agreements".......................................   3
          "Encumbrance".................................................   3
          "Environment".................................................   3
          "Environmental, Health, and Safety Liabilities"...............   3
          "Environmental Law"...........................................   4
          "ERISA".......................................................   5
          "Existing Practice"...........................................   5
          "Facilities"..................................................   5
          "Financial Statements"........................................   5
          "GAAP"........................................................   5
          "Governmental Authorization"..................................   5
          "Governmental Body"...........................................   5
          "Hazardous Activity"..........................................   5
          "Hazardous Materials".........................................   6
          "HSR Act".....................................................   6
          "Indemnified Persons".........................................   6
          "Intellectual Property Assets"................................   6
          "Interim Financial Statements"................................   6
          "IOI".........................................................   6
          "IOI Securities"..............................................   6
          "IOI Securities Filings"......................................   6
          "IRS".........................................................   6
          "Knowledge"...................................................   6
          "Legal Requirement"...........................................   6
          "Management Services Agreement"...............................   6
          "Medical Assets"..............................................   7
          "Medical Practice"............................................   7
 

                                       i
<PAGE>
 
          "Occupational Safety and Health Law"...........................  7
          "Order"........................................................  7
          "Ordinary Course of Business"..................................  7
          "Organizational Documents".....................................  8
          "Person".......................................................  8
          "Plan".........................................................  8
          "Proceeding"...................................................  8
          "Related Person"...............................................  8
          "Release"......................................................  9
          "Representative"...............................................  9
          "Securities Act"...............................................  9
          "Sellers"......................................................  9
          "Subsidiary"...................................................  9
          "Tax".......................................................... 10
          "Tax Return"................................................... 10
          "Threat of Release"............................................ 10
          "Threatened"................................................... 10

2.   TRANSFER OF SHARES; CASH PAYMENT; CLOSING........................... 10
     2.1  Delivery by IOI................................................ 10
     2.2  Closing........................................................ 11
     2.3  Closing Obligations............................................ 11

3.   REPRESENTATIONS AND WARRANTIES OF SELLERS........................... 13
     3.1  Organization and Good Standing................................. 13
     3.2  Authority; No Conflict......................................... 13
     3.3  Capitalization................................................. 14
     3.4  Financial Statements........................................... 15
     3.5  Books and Records.............................................. 15
     3.6  Title to Properties; Encumbrances.............................. 15
     3.7  Condition and Sufficiency of Assets............................ 16
     3.8  Accounts Receivable............................................ 16
     3.9  Inventory...................................................... 16
     3.10 No Liabilities................................................. 17
     3.11 Taxes.......................................................... 17
     3.12 No Material Adverse Change..................................... 18
     3.13 Employee Benefits.............................................. 18
     3.14 Compliance with Legal Requirements; Governmental Authorizations 24
     3.15 Legal Proceedings; Orders...................................... 25
     3.16 Absence of Certain Changes and Events.......................... 26
     3.17 Contracts; No Defaults......................................... 27
     3.18 Insurance...................................................... 30
     3.19 Environmental Matters.......................................... 32
     3.20 Employees...................................................... 33
     3.21 Labor Disputes; Compliance..................................... 34
     3.22 Intellectual Property.......................................... 35

                                       ii
<PAGE>
 
     3.23  Certain Payments.............................................  38
     3.24  Disclosure...................................................  38
     3.25  Relationships With Related Persons............................ 38
     3.26  Investment Representations...................................  39
     3.27  Brokers or Finders...........................................  40

4.   REPRESENTATIONS AND WARRANTIES OF BUYER............................  40
     4.1  Organization and Good Standing................................  40
     4.2  Authority; No Conflict........................................  40
     4.3  Investment Intent.............................................  41
     4.4  Certain Proceedings...........................................  41
     4.5  Brokers or Finders............................................  41
     4.6  Capital Stock.................................................  41
     4.7  SEC Filings; Financial Information............................  41
     4.8  No Material Adverse Change....................................  41
     4.9  Disclosure....................................................  42

5.   COVENANTS OF SELLERS PRIOR TO CLOSING DATE.........................  42
     5.1   Access and Investigation.....................................  42
     5.2   Operation of the Business of the Acquired Company............  42
     5.3   Negative Covenant............................................  43
     5.4   Required Approvals...........................................  43
     5.5   Notification.................................................  43
     5.6   Payment of Indebtedness by Related Persons...................  43
     5.7   No Negotiation...............................................  43
     5.8   Acquisition Audit............................................  44
     5.9   Termination of Employee Plans................................  44
     5.10  Best Efforts.................................................  44

6.   COVENANTS OF BUYER PRIOR TO CLOSING DATE...........................  44
     6.1  Approvals of Governmental Bodies..............................  44
     6.2  Best Efforts..................................................  44
     6.3  Notification..................................................  44
     6.4  Access and Investigation......................................  45

7.   CONDITIONS PRECEDENT TO BUYER'S OBLIGATION TO CLOSE................  45
     7.1  Accuracy of Representations...................................  45
     7.2  Seller's Performance..........................................  45
     7.3  Consents......................................................  46
     7.4  Additional Documents..........................................  46
     7.5  No Proceedings................................................  46
     7.6  No Claim Regarding Stock Ownership or Sale Proceeds...........  46
     7.7  No Prohibition................................................  47

8.   CONDITIONS PRECEDENT TO SELLERS' OBLIGATION TO CLOSE...............  47
     8.1  Accuracy of Representations...................................  47

                                      iii
<PAGE>
 
      8.2   Buyer's Performance.........................................  47
      8.3   Consents....................................................  47
      8.4   Additional Documents........................................  47
      8.5   No Injunction...............................................  48

9.   TERMINATION........................................................  48
      9.1   Termination Events..........................................  48
      9.2   Effect of Termination.......................................  48

     10.    INDEMNIFICATION; REMEDIES...................................  49
     10.1   Survival....................................................  49
     10.2   Indemnification and Reimbursement by Seller.................  49
     10.3   Indemnification and Reimbursement by Sellers - Environmental
            Matters.....................................................  50
     10.4   Indemnification and Reimbursement by Buyer..................  51
     10.5   Time Limitations............................................  51
     10.6   Limitations on Amount - Seller..............................  51
     10.7   Limitations on Amount - Buyer...............................  52
     10.8   Procedure for Indemnification - Direct Claims...............  52
     10.9   Procedure for Indemnification - Third Party Claims..........  52

     11.    GENERAL PROVISIONS..........................................  53
     11.1   Noncompetition..............................................  53
     11.2   Expenses....................................................  54
     11.3   Public Announcements........................................  54
     11.4   Notices.....................................................  54
     11.5   Jurisdiction; Service of Process............................  55
     11.6   Further Assurances..........................................  55
     11.7   Waiver......................................................  55
     11.8   Entire Agreement and Modification...........................  55
     11.9   Schedule....................................................  56
     11.10  Assignments, Successors, and No Third-Party Rights..........  56
     11.11  Severability................................................  56
     11.12  Section Headings, Construction..............................  56
     11.13  Time of Essence.............................................  56
     11.14  Governing Law...............................................  56
     11.15  Counterparts................................................  56
     11.16  Tax Returns.................................................  56
     11.17  Confidentiality.............................................  57
     11.18  Willow Valley...............................................  57
     11.19  Pennsylvania Securities Laws................................  57

SCHEDULE I       MEDICAL CONTRACTS
SCHEDULE 2.1(d)  ASSUMED LIABILITIES
SCHEDULE 3.1     CORPORATE INFORMATION
SCHEDULE 3.2(b)  CONFLICT
EXHIBIT 3.3      CAPITALIZATION

                                       iv
<PAGE>
 
SCHEDULE 3.6          REAL PROPERTY
SCHEDULE 3.9          INVENTORY
SCHEDULE 3.11         TAXES
SCHEDULE 3.13(b)(i)   COMPANY PLANS, COMPANY OTHER BENEFIT OBLIGATION
SCHEDULE 3.13(b)(ii)  ERISA AFFILIATES
SCHEDULE 3.13(b)(iii) MULTI-EMPLOYER PLANS
SCHEDULE 3.13(b)(iv)  POST RETIREMENT BENEFITS
SCHEDULE 3.14         COMPLIANCE
SCHEDULE 3.15         LEGAL PROCEEDINGS
SCHEDULE 3.16         ABSENCE OF CHANGES
SCHEDULE 3.17(a)      APPLICABLE CONTRACTS
SCHEDULE 3.17(b)      EXCEPTIONS
SCHEDULE 3.17(c)      EXCEPTIONS
SCHEDULE 3.17(d)      EXCEPTIONS
SCHEDULE 3.18(b)      SELF-INSURANCE & RISK-TAKING
SCHEDULE 3.18(c)      LOSS EXPERIENCE
SCHEDULE 3.18(d)      INSURANCE POLICIES
SCHEDULE 3.19         ENVIRONMENTAL MATTERS
SCHEDULE 3.20(a)      EMPLOYEES, OFFICERS, AND DIRECTORS
SCHEDULE 3.20(e)      DEPARTING EMPLOYEES, OFFICERS, AND DIRECTORS
SCHEDULE 3.20(f)      SEVERANCE AGREEMENTS
SCHEDULE 3.22(c)(ii)  WORKERS NOT FOR HIRE
SCHEDULE 3.22(b)      INTELLECTUAL PROPERTY
SCHEDULE 3.22(d)      PATENTS
SCHEDULE 3.22(e)      TRADEMARKS
SCHEDULE 3.22(f)      COPYRIGHTS
SCHEDULE 3.25         RELATED PERSONS
SCHEDULE 3.26(f)      PRIVATE PLACEMENT MEMORANDUM
SCHEDULE 3.26(f)(ii)  IOI SECURITIES FILINGS
SCHEDULE 3.26(g)      PENNSYLVANIA SECURITIES ACT
SCHEDULE 4.2(b)       BUYER AUTHORITY
SCHEDULE 4.8          MATERIAL ADVERSE CHANGE
EXHIBIT 5.6           RELATED PERSONS
EXHIBIT 7.4(a)        SELLERS' LEGAL OPINION
EXHIBIT 7.4(c)        CONSENT AND ESTOPPEL CERTIFICATE (FOR LEASE)
EXHIBIT 7.4(e)        LANDLORD'S CONSENT AND ESTOPPEL CERTIFICATE(FOR LEASE)
EXHIBIT 7.4(g)        LANDLORD'S CONSENT AND ESTOPPEL CERTIFICATE(FOR LEASE)
EXHIBIT 7.4(k)        SUBLESSEE'S CONSENT AND ESTOPPEL CERTIFICATE(FOR LEASE)
EXHIBIT 8.4(a)        BUYER'S LEGAL OPINION
EXHIBIT 11.18(a)      FORM OF ASSIGNMENT OF LEASE
EXHIBIT 11.18(b)      FORM OF LANDLORD CONSENT

                                       v
<PAGE>
 
                           STOCK PURCHASE AGREEMENT

     This Stock Purchase Agreement ("Agreement") is made as of December 15,
1997 by and between Integrated Orthopaedics, Inc. ("IOI") ("Buyer"), Wayne
Conrad, M.D., J. Paul Lyet, M.D., Timothy Tymon, M.D., Raymond Peart, M.D., I.
Stanley Porter, M.D., Gary Zartman, M.D., and Mark K. Perezous, M.D. as the
direct or indirect beneficial owners of the Acquired Company (collectively the
"Sellers" and individually "Conrad," "Lyet," "Tymon,"  "Peart," "Porter,"
"Zartman" and "Perezous" respectively).

                                    RECITALS

     WHEREAS, Sellers own all of the issued and outstanding capital stock or
interests of the Acquired Company;

     WHEREAS, IOI is a publicly traded company; and

     WHEREAS, Sellers wish to sell and IOI wishes to buy all of the issued and
outstanding interests and capital stock of the Acquired Company in exchange for
the Acquisition Price and  the other consideration set forth in this Agreement
on the terms set forth in this Agreement.

     The parties, intending to be legally bound, agree as follows:

     1.   DEFINITIONS

     For purposes of this Agreement, the following terms have the meanings
specified or referred to in this Section 1:

     "ACQUISITION PRICE" -- that combination of cash, stock, and other
consideration referenced in Section 2.1, and for purposes of Zartman and
Perezous that combination of cash and stock to be delivered to Zartman and
Perezous pursuant to that certain Option Agreement with Zartman and that certain
Option Agreement with Perezous of even date herewith.

     "ACQUIRED COMPANY" -- IOI Management Services of Pennsylvania, Inc., a
Pennsylvania business corporation and its predecessor, the Existing Practice,
including but not limited to Medical Assets.

     "AFFILIATE" -- any Person, other than an individual or Governmental Body,
that controls, is controlled by, or under common control with another Person,
other than an individual or Governmental Body.

     "APPLICABLE CONTRACT" -- any Contract (a) under which Acquired Company has
or may acquire any rights, (b) under which Acquired Company has or may become
subject to any obligation or liability, or (c) by which Acquired Company or any
of the assets owned or used by Acquired Company is or may become bound.
<PAGE>
 
     "BEST EFFORTS" -- the efforts that a prudent Person desirous of achieving a
result would use in similar circumstances to ensure that such result is achieved
as expeditiously as possible; provided, however, that a Person required to use
his Best Efforts under this Agreement will not be required to take actions that
would result in a materially adverse change in the benefits to such Person of
this Agreement and the Contemplated Transactions.

     "BREACH" -- a "Breach" of a representation, warranty, covenant, obligation,
or other provision of this Agreement or any instrument delivered pursuant to
this Agreement will be deemed to have occurred if there is or has been (a) any
inaccuracy in or breach of, or any failure to perform or comply with, such
representation, warranty, covenant, obligation, or other provision, or (b) any
claim (by any Person) or other occurrence or circumstance that is or was
inconsistent with such representation, warranty, covenant, obligation, or other
provision, and the term "Breach" means any such inaccuracy, breach, failure,
claim, occurrence, or circumstance.

     "BUYER" -- as defined in the first paragraph of this Agreement.

     "CLOSING" -- as defined in Section 2.2.

     "CLOSING DATE" -- the date and time as of which the Closing actually takes
place.

     "CODE" -- the Internal Revenue Code of 1986 or any successor law, and
regulations issued by the IRS pursuant to the Internal Revenue Code or any
successor law.

     "CONSENT" -- any approval, consent, ratification, waiver, or other
authorization (including any Governmental Authorization).

     "CONTEMPLATED TRANSACTIONS" -- all of the transactions contemplated by this
Agreement, including:

          (a)  the sale of the accounts receivable of the Existing Practice to
               IOI immediately before the conversion;

          (b)  the creation of Medical Practice by the Sellers and the sale of
               pharmaceuticals from the Existing Practice to Medical Practice
               (including the assumption of all liabilities and obligations,
               known or unknown contingent or otherwise, relating to the
               pharmaceuticals) on or before the Closing Date;

          (c)  the assignment of certain office leases from the Existing
               Practice to the Acquired Company contemporaneous with its
               conversion;

          (d)  the conversion of Existing Practice by the Sellers into the
               Acquired Company, a business corporation;

                                       2
<PAGE>
 
          (e)  the execution of a Management Services Agreement between Medical
               Practice and the Acquired Company;

          (f)  delivery by the Sellers of all the issued and outstanding capital
               stock of the Acquired Company to IOI (or in the case of Perezous
               and Zartman, delivery to a trust);

          (g)  the payment by IOI to Conrad, Lyet, Tymon, Peart, Porter, Zartman
               and Perezous of the Acquisition Price (or in the case of Perezous
               and Zartman, delivery to a trust);

          (h)  the performance by Buyer and Sellers of their respective
               covenants and obligations under this Agreement;

          (i)  IOI's acquisition, ownership, and the exercise of control over
               the Acquired Company; and

          (j)  the sale of Medical Assets by the Acquired Company to Medical
               Practice.

     "CONTRACT" -- any agreement, contract, obligation, promise, or undertaking
(whether written or oral and whether express or implied) that is legally
binding.

     "DAMAGES" -- as defined in Section 10.2.

     "EMPLOYMENT AGREEMENTS" -- as defined in Section 2.3.

     "ENCUMBRANCE" -- any charge, claim, community property interest, condition,
equitable interest, lien, option, pledge, security interest, right of first
refusal, or restriction of any kind, including any restriction on use, voting
(in the case of any security), transfer, receipt of income, or exercise of any
other attribute of ownership.

     "ENVIRONMENT" -- soil, land surface or subsurface strata, surface waters
(including navigable waters and ocean waters), groundwaters, drinking water
supply, stream sediments, ambient air (including indoor air), plant and animal
life, and any other environmental medium or natural resource.

     "ENVIRONMENTAL, HEALTH, AND SAFETY LIABILITIES" -- any cost, damages,
expense, liability, obligation, or other responsibility arising from or under
Environmental Law or Occupational Safety and Health Law and relating to:

          (a)  any environmental, health, or safety matters or conditions
               (including on-site or off-site contamination, occupational safety
               and health, and regulation of chemical substances or products);

          (b)  fines, penalties, judgments, awards, settlements, legal or
               administrative proceedings, damages, losses, claims, demands and
               response, remedial,

                                       3
<PAGE>
 
               or inspection costs and expenses arising under Environmental Law
               or Occupational Safety and Health Law;

          (c)  financial responsibility under Environmental Law or Occupational
               Safety and Health Law for cleanup costs or corrective action,
               including any cleanup, removal, containment, or other remediation
               or response actions ("Cleanup") required by applicable
               Environmental Law or Occupational Safety and Health Law (whether
               or not such Cleanup has been required or requested by any
               Governmental Body or any other Person) and for any natural
               resources damages; or

          (d)  any other compliance, corrective, or remedial measures required
               under Environmental Law or Occupational Safety and Health Law.

The terms "removal," "remedial," and "response action" will include the types of
activities covered by the United States Comprehensive Environmental Response,
Compensation, and Liability Act, 42 U.S.C. (S) 9601 et seq., as amended
("CERCLA").

          "ENVIRONMENTAL LAW" -- any Legal Requirement designed:

          (a)  to advise appropriate authorities, employees, and the public of
               intended or actual releases of pollutants or hazardous substances
               or materials, violations or discharge limits, or other
               prohibitions and of the commencements of activities, such as
               resource extraction or construction, that could have significant
               impact on the Environment;

          (b)  to prevent or acceptably minimize the release of pollutants or
               hazardous substances or materials into the Environment;

          (c)  to reduce the quantities, prevent the release, and minimize the
               hazardous characteristics of wastes that are generated;

          (d)  to assure that products are designed, formulated, packaged, or
               used so that they do not present unreasonable risks to human
               health or the Environment when used or disposed of;

          (e)  to protect resources, species, or ecological amenities;

          (f)  to acceptably minimize the risks inherent in transportation of
               hazardous substances, pollutants, oil, or other potentially
               harmful substances;

          (g)  to clean up pollutants that have been released, prevent the
               threat of release, or pay the costs of such clean up or
               prevention; or

          (h)  to make responsible parties pay private parties, or groups of
               them, for damages done to their health or Environment, or to
               permit self-appointed

                                       4
<PAGE>
 
               representatives of the public interest to recover for injuries
               done to public assets.

          "ERISA" -- the Employee Retirement Income Security Act of 1974 or any
successor law, and regulations and rules issued pursuant to that Act or any
successor law.

          "EXISTING PRACTICE" --  Lancaster Orthopedic Group, Inc.

          "FACILITIES" -- any real property, leaseholds, or other interests
currently or formerly owned or operated by the Acquired Company (or any
predecessor Person) and any buildings, plants, structures, or equipment
currently or formerly owned, leased, or operated by the Acquired Company (or any
predecessor Person).

          "FINANCIAL STATEMENTS" --  as defined in Section 3.4.

          "GAAP" -- generally accepted United States accounting principles,
applied on a consistent basis, on which the Balance Sheet and the other
financial statements referred to in Section 3.4 were prepared.

          "GOVERNMENTAL AUTHORIZATION" -- any approval, consent, license,
permit, waiver, or other authorization issued, granted, given, or otherwise made
available by or under the authority of any Governmental Body or pursuant to any
Legal Requirements.

          "GOVERNMENTAL BODY" -- any:

          (a)  nation, state, county, city, town, village, district, or other
               jurisdiction of any nature;

          (b)  federal, state, local, municipal, foreign, or other government;

          (c)  governmental or quasi-governmental authority of any nature
               (including any governmental agency, branch, department, official,
               or entity and any court or other tribunal);

          (d)  multi-national organization or body; or

          (e)  body exercising, or entitled or purporting to exercise, any
               administrative, executive, judicial, legislative, police,
               regulatory, or taxing authority or power of any nature.

          "HAZARDOUS ACTIVITY" -- the distribution, generation, handling,
importing, management, manufacturing, processing, production, refinement,
Release, storage, transfer, transportation, treatment, or use (including any
withdrawal or other use of groundwater) of Hazardous Materials in, on, under,
about, or from the Facilities or any part thereof into the Environment, and any
other act, business, operation, or thing that increases the danger, or risk

                                       5
<PAGE>
 
of danger, or poses an unreasonable risk of harm to persons or property on or
off the Facilities, or that may affect the value of the Facilities or the
Acquired Company.

          "HAZARDOUS MATERIALS" -- any substance that is now or will foreseeably
be listed, defined, designated, or classified as, or otherwise determined to be,
hazardous, radioactive, or toxic or a pollutant or a contaminant under or
pursuant to any Environmental Law, including any admixture or solution thereof,
and specifically including petroleum and all derivatives thereof or synthetic
substitutes therefor and asbestos or asbestos-containing materials.

          "HSR ACT" -- the Hart-Scott-Rodino Antitrust Improvements Act of 1976
or any successor law, and regulations and rules issued pursuant to that Act or
any successor law.

          "INDEMNIFIED PERSONS" -- as defined in Section 10.2.

          "INTELLECTUAL PROPERTY ASSETS" -- as defined in Section 3.22.

          "INTERIM FINANCIAL STATEMENTS" -- as defined in Section 3.4.

          "IOI" -- Integrated Orthopaedics, Inc.

          "IOI SECURITIES" -- shall mean collectively IOI Common Stock.

          "IOI SECURITIES FILINGS" -- as defined in Section 3.26.

          "IRS" -- the United States Internal Revenue Service or any successor
agency, and, to the extent relevant, the United States Department of the
Treasury.

          "KNOWLEDGE" -- an individual will be deemed to have "Knowledge" of a
particular fact or other matter if such individual is actually aware of such
fact or other matter or a prudent individual could be expected to discover or
otherwise become aware of such fact or other matter in the course of conducting
the business of the Acquired Company.

     A Person (other than an individual) will be deemed to have "Knowledge" of a
particular fact or other matter if any individual who is serving, or who has at
any time served, as a director, officer, partner, executor, or trustee of such
Person (or in any similar capacity) has, or at any time had, Knowledge of such
fact or other matter.

          "LEGAL REQUIREMENT" -- any federal, state, local, municipal, foreign,
international, multinational, or other administrative order, constitution, law,
ordinance, principle of common law, regulation, statute, or treaty.

          "MANAGEMENT SERVICES AGREEMENT" -- that one certain contract of even
date herewith between Medical Practice and the Acquired Company, in a form
approved by Buyer.

                                       6
<PAGE>
 
          "MEDICAL ASSETS" -- the following assets and their associated
liabilities and obligations belonging to Acquired Company to be sold to Medical
Practice as part of the Contemplated Transactions:

          (a)  all names, trade names, assumed names, trademarks, and service
               marks, (or variations thereof), including, but not limited to,
               the names "Lancaster Orthopedic Group, Inc.," "Lancaster
               Orthopedic Center, " "Lancaster Arthroscopy Center," "The
               Lancaster Hand Center," "Lancaster Pedorthic Center," "Lancaster
               Foot Center," "Mid-Atlantic Arthroscopy Center," and any
               derivations thereof;

          (b)  all interest in those commitments, Contracts, leases, and
               agreements described on Schedule I hereto;

          (c)  all warranties and guaranties of manufacturers, contractors,
               Sellers, or suppliers, if any, that pertain to these Medical
               Assets; and

          (d)  subject to the laws of patient confidentiality, all patient
               medical records including patient billing records and files
               existing prior to the Closing Date.

          "MEDICAL PRACTICE" --  Lancaster Orthopedic Group, P.C. to be formed
as part of the Contemplated Transactions and whose shareholders are to be
Conrad, Lyet, Tymon, Peart, Porter, Zartman, and Perezous.

          "OCCUPATIONAL SAFETY AND HEALTH LAW" -- any Legal Requirement designed
to provide safe and healthful working conditions and to reduce occupational
safety and health hazards, and any program, whether governmental or private
(such as those promulgated or sponsored by industry associations and insurance
companies), designed to provide safe and healthful working conditions.

          "ORDER" -- any award, decision, injunction, judgment, order, ruling,
subpoena, or verdict entered, issued, made, or rendered by any court,
administrative agency, or other Governmental Body or by any arbitrator.

          "ORDINARY COURSE OF BUSINESS" -- an action taken by a Person will be
deemed to have been taken in the "Ordinary Course of Business" only if:

          (a)  such action is consistent with the past practices of such Person
               and is taken in the ordinary course of the normal day-to-day
               operations of such Person;

          (b)  such action is not required to be authorized by the board of
               directors of such Person (or by any Person or group of Persons
               exercising similar authority), is not required to be specifically
               authorized by the parent company (if any) of such Person, and
               does not require any other separate or special authorization of
               any nature; and

                                       7
<PAGE>
 
          (c)  such action is similar in nature and magnitude to actions
               customarily taken, without any separate or special authorization,
               in the ordinary course of the normal day-to-day operations of
               other Persons that are in the same line of business as such
               Person.

          "ORGANIZATIONAL DOCUMENTS" -- (a) the articles or certificate of
incorporation and the bylaws of a corporation; (b) the partnership agreement and
any statement of partnership of a general partnership; (c) the limited
partnership agreement and the certificate of limited partnership of a limited
partnership; (d) any charter or similar document adopted or filed in connection
with the creation, formation, or organization of a Person; and (e) any amendment
to any of the foregoing.

          "PERSON" -- any individual, corporation (including any non-profit
corporation), general or limited partnership, limited liability company, joint
venture, estate, trust, association, organization, labor union, or other entity
or Governmental Body.

          "PLAN" -- as defined in Section 3.13.

          "PROCEEDING" -- any action, arbitration, audit, hearing,
investigation, litigation, or suit (whether civil, criminal, administrative,
investigative, or informal) commenced, brought, conducted, or heard by or
before, or otherwise involving, any Governmental Body or arbitrator.

          "RELATED PERSON" -- with respect to a particular individual:

          (a)  each other member of such individual's Family;

          (b)  any Person that is directly or indirectly controlled by such
               individual or any one or more members of such individual's
               Family;

          (c)  any Person in such which such individual or members of such
               individual's Family hold (individually or in the aggregate) a
               Material Interest; and

          (d)  any Person with respect to which such individual or one or more
               members of such individual's Family serves as a director,
               officer, partner, executor, or trustee (or in a similar
               capacity).

With respect to a specified Person other than an individual:

          (a)  any Person that directly or indirectly controls, is directly or
               indirectly controlled by, or is directly or indirectly under
               common control with such specified Person;

          (b)  any Person that holds a Material Interest in such specified
               Person;

          (c)  each Person that serves as a director, officer, partner,
               executor, or trustee of such specified Person (or in a similar
               capacity);

                                       8
<PAGE>
 
          (d)  any Person in which such specified Person holds a Material
               Interest;

          (e)  any Person with respect to which such specified Person serves as
               a general partner or a trustee (or in a similar capacity); and

          (e)  any Related Person of any individual described in Clause (b) or
               (c).

For purposes of this definition, (a) the "Family" of an individual includes (i)
the individual, (ii) the individual's spouse and former spouses, (iii) any other
natural person who is related to the individual or the individual's spouse
within the second degree, and (iv) any other natural person who resides with
such individual, and (b) "Material Interest" means direct or indirect beneficial
ownership (as defined in Rule 13d-3 under the Securities Exchange Act of 1934)
of voting securities or other voting interests representing at least 5% of the
outstanding voting power of a Person or equity securities or other equity
interests representing at least 5% of the outstanding equity securities or
equity interests in a Person.

          "RELEASE" -- any spilling, leaking, emitting, discharging, depositing,
escaping, leaching, dumping, or other releasing into the Environment.

          "REPRESENTATIVE" -- with respect to a particular Person, any director,
officer, employee, agent, consultant, advisor, or other representative of such
Person, including legal counsel, accountants, and financial advisors.

          "SECURITIES ACT" -- the Securities Act of 1933 or any successor law,
and regulations and rules issued pursuant to that Act or any successor law.

          "SELLERS" -- as defined in the first paragraph of this Agreement.

          "SUBSIDIARY" -- with respect to any Person (the "Owner"), any
corporation or other Person of which securities or other interests having the
power to elect a majority of that corporation's or other Person's board of
directors or similar governing body, or otherwise having the power to direct the
business and policies of that corporation or other Person (other than securities
or other interests having such power only upon the happening of a contingency
that has not occurred) are held by the Owner or one or more of its Subsidiaries.

          "TAX" -- any tax (including any excise tax, payroll tax, income tax,
capital gains tax, value added tax, sales or use tax, franchise tax, property or
inventory tax, gift tax, or estate tax), levy, assessment, tariff, duty
(including any customs duty), deficiency, or other fee, and any related charge
or amount (including any fine, penalty, interest, or addition to tax), imposed,
assessed, or collected by or under the authority of any Governmental Body.

          "TAX RETURN" -- any return (including an information return), report,
statement, schedule, notice, form or other document or information filed with or
submitted to, or required to be filed with or submitted to, any Governmental
Body in connection with the determination, assessment, collection, or payment of
any Tax or in connection with the administration,

                                       9
<PAGE>
 
implementation, or enforcement of or compliance with any Legal Requirement
relating to any Tax.

          "THREAT OF RELEASE" -- a substantial likelihood of a Release that may
require action in order to prevent or mitigate damage to the Environment that
may result from such Release.

          "THREATENED" -- a claim, Proceeding, dispute, action, or other matter
will be deemed to have been "Threatened" if any demand or statement has been
made (orally or in writing) or any notice has been given (orally or in writing),
or if any other event has occurred or any other circumstances exist, that would
lead a prudent Person to conclude that such a claim, Proceeding, dispute,
action, or other matter is likely to be asserted, commenced, taken or otherwise
pursued in the future.

     2.   TRANSFER OF SHARES; CASH PAYMENT; CLOSING

     2.1  DELIVERY BY IOI.  Subject to the terms and conditions of this
Agreement, at the Closing Sellers will sell and transfer to IOI all of the
outstanding shares of common  stock of the Acquired Company and IOI undertakes
the following:

     (a)  the delivery by IOI of a total of 258,930 shares of IOI common stock,
          51,786 shares of which are to be delivered to Conrad, 51,786 shares of
          which are to be delivered to Lyet, 51,786 shares of which are to be
          delivered to Tymon, 51,786 shares of which are to be delivered to
          Peart, and 51,786 shares of which are to be delivered to Porter;

     (b)  the delivery of a put and call option between Buyer and Perezous for
          the sale of all shares of the Acquired Company held by Perezous in
          exchange for 51,786 shares of IOI common stock and $1,271,429 cash,
          and the delivery of a put and call option between Buyer and Zartman
          for the sale of all shares of the Acquired Company held by Perezous in
          exchange for 51,786 shares of IOI common stock and $1,271,429 cash.

     (c)  the delivery by IOI to Conrad of cash in the amount of $1,271,429, to
          Lyet cash in the  amount of $1,271,429, to Tymon cash in the amount of
          $1,271,429, to Peart cash in the amount of $1,271,429, and to Porter
          cash in the amount of $1,271,429; and

     (d)  the assumption by IOI of those liabilities identified as such on
          Schedule 2.1(d), which are represented by Sellers to be, in the
          aggregate, not in excess of $0.00.

     2.2  CLOSING.  The purchase and sale (the "Closing") provided for in this
Agreement will take place in Lancaster, Pennsylvania on the later of (i)
December 15, 1997 and (ii) the date that is two business days following the
termination of the applicable waiting period under the HSR Act, or at such other
time and place as the parties may mutually agree. Subject to the provisions of
Section 9, failure to consummate the purchase and sale provided for in this

                                       10
<PAGE>
 
Agreement on the date and time and at the place determined pursuant to this
Section 2.2 will not result in the termination of this Agreement and will not
relieve any party of any obligation under this Agreement.

     2.3  CLOSING OBLIGATIONS.  At the Closing:

     (a) Sellers will or cause a third party to deliver to or exchange with
Buyer:

          (i) fully executed bills of sale and assignment from Existing Practice
     to IOI of the accounts receivable of the Existing Practice;

          (ii) articles of incorporation as filed with the Pennsylvania
     Department of State of Medical Practice together with an original duplicate
     of the corporate bylaws, fully executed option agreement, an original
     duplicate of the buy-sell agreement, and  an original duplicate of the
     written consent in lieu of initial organizational meeting;

          (iii) fully executed bill of sale transferring to Medical Practice
     pharmaceuticals of the Existing Practice;

          (iv) evidence of the Management Services Agreement between Medical
     Practice and the Acquired Company;

          (v) fully executed terminations and mutual releases of all existing
     agreements  between each Seller and the Existing Practice, effective as of
     the Closing Date;

          (vi) evidence of the termination of all the employees of the Existing
     Practice except as set forth on Schedule 3.20(e);

          (vii) fully executed employment agreements between Medical Practice
     and Wayne Conrad, M.D., J. Paul Lyet, M.D., Timothy Tymon, M.D., Raymond
     Peart, M.D., I. Stanley Porter, M.D., Gary Zartman, M.D., Mark K. Perezous,
     M.D., and fully executed Assignment and Assumption of Physician Employment
     Agreements among Medical Practice, Existing Practice and Charles M. Evans,
     M.D., Warren J. Robbins, M.D., Benjamin S. Warfel, II, M.D., and Steve
     Lawrence, M.D., effective as of the Closing Date;

          (viii) articles of amendment as filed with the Pennsylvania Department
     of State for the Existing Practice to have been converted into the Acquired
     Company, together with all corporate tax and financial records and books of
     the Acquired Company including, but not limited to articles of
     incorporation as filed with the Pennsylvania Department of State, corporate
     bylaws, and corporate minutes and resolutions of the board of directors and
     shareholders;

          (ix) written resignations of the directors and officers of the
     Acquired Company;

                                       11
<PAGE>
 
          (x)  with the exception of those shares held by Zartman and Perezous,
     certificates representing all the outstanding and issued capital stock of
     the Acquired Company, duly endorsed (or accompanied by duly executed stock
     powers), for transfer to IOI together with all corporate records and books
     of the Acquired Company  including, but not limited to articles of
     incorporation as filed with the Pennsylvania Department of State, corporate
     bylaws, and corporate minutes and resolutions of the board of directors and
     shareholders;

          (xi)  a certificate executed by Sellers representing and warranting to
     Buyer that each of Sellers' representations and warranties in this
     Agreement was accurate in all respects as of the date of this Agreement and
     is accurate in all respects as of the Closing Date as if made on the
     Closing Date (giving full effect to any supplements to the Schedules that
     were delivered by Sellers to Buyer prior to the Closing Date in accordance
     with Section 5.5); and

          (xii)  the delivery of a put and call option between Buyer and
     Perezous for the sale of all shares of the Acquired Company held by
     Perezous in exchange for 51,786 shares of IOI common stock and $1,271,429
     cash, and the delivery of a put and call option between Buyer and Zartman
     for the sale of all shares of the Acquired Company held by Perezous in
     exchange for 51,786 shares of IOI common stock and $1,271,429 cash.

     (b)  Buyer will deliver or exchange:

          (i) the Acquisition Price (except that certificates of IOI common
     stock may be issued by Buyer up to fifteen (15) working days after the
     Closing Date);

          (ii) a certificate executed by Buyer to the effect that, except as
     otherwise stated in such certificate, each of Buyer's representations and
     warranties in this Agreement was accurate in all respects as of the date of
     this Agreement and is accurate in all respects as of the Closing Date as if
     made on the Closing Date;

          (iii)  a fully executed bill of sale transferring to Medical Practice
     the Medical Assets and certain other assets of the Acquired Company.

     3.   REPRESENTATIONS AND WARRANTIES OF SELLERS

     Sellers represent to Buyer as follows:

     3.1  ORGANIZATION AND GOOD STANDING.

     (a) Schedule 3.1 contains a complete and accurate list for the Acquired
Company of its name, its jurisdiction of incorporation, other jurisdictions in
which it is authorized to do business, and its capitalization (including the
identity of each stockholder and the number of shares held by each).  The
Acquired Company is a corporation duly organized, validly existing, and in good
standing under the laws of its jurisdiction of incorporation, with full
corporate

                                       12
<PAGE>
 
power and authority to conduct its business as it is now being conducted, to own
or use the properties and assets that it purports to own or use, and to perform
all its obligations under Applicable Contracts.  The Acquired Company is duly
qualified to do business as a foreign corporation and is in good standing under
the laws of each state or other jurisdiction in which either the ownership or
use of the properties owned or used by it, or the nature of the activities
conducted by it, requires such qualification.

     (b) Sellers have delivered to Buyer copies of the Organizational Documents
of the Acquired Company, as currently in effect.

     3.2  AUTHORITY; NO CONFLICT.

     (a) This Agreement constitutes the legal, valid, and binding obligation of
Sellers enforceable against them in accordance with its terms.  Upon the
execution and delivery or exchange by Sellers or the Acquired Company of this
Agreement and the documents set forth in Sections 2.3, 7.4, and otherwise
(collectively, the "Sellers' Closing Documents"), the Sellers' Closing Documents
will constitute the legal, valid, and binding obligations of Sellers,
enforceable against them in accordance with their respective terms.  Sellers
have the absolute and unrestricted right,  power, authority, and capacity to
execute and deliver this Agreement and the Sellers' Closing Documents and to
perform their obligations under this Agreement and the Sellers' Closing
Documents.

     (b) Except as set forth in Schedule 3.2(b), neither the execution and
delivery of this Agreement nor the consummation or performance of any of the
Contemplated Transactions will, directly or indirectly (with or without notice
or lapse of time):

          (i) contravene, conflict with, or result in a violation of (A) any
     provision of the Organizational Documents of the Acquired Company, or (B)
     any resolution adopted by the board of directors or the stockholders of the
     Acquired Company;

          (ii) contravene, conflict with, or result in a violation of, or give
     any Governmental Body or other Person the right to challenge any of the
     Contemplated Transactions or to exercise any remedy or obtain any relief
     under, any Legal Requirement or any Order to which the Acquired Company or
     any Seller, or any of the assets owned or used by the Acquired Company, may
     be subject;

          (iii)  contravene, conflict with, or result in a violation of any of
     the terms or requirements of, or give any Governmental Body the right to
     revoke, withdraw, suspend, cancel, terminate, or modify, any Governmental
     Authorization that is held by the Acquired Company or that otherwise
     relates to the business of, or any of the assets owned or used by, the
     Acquired Company;

          (iv) cause IOI or the Acquired Company to become subject to, or to
     become liable for the payment of, any Tax payable by Sellers as a result of
     this transaction as contemplated by this Agreement (except taxes based upon
     the income of Buyer);

                                       13
<PAGE>
 
          (v) contravene, conflict with, or result in a violation or breach of
     any provision of, or give any Person (except Sellers) the right to declare
     a default or exercise any remedy under, or to accelerate the maturity or
     performance of, or to cancel, terminate, or modify, any Applicable
     Contract; or

          (vi) result in the imposition or creation of any Encumbrance upon or
     with respect to any of the assets owned or used by the Acquired Company.

Except as set forth in Schedule 3.2(b), no Seller or Acquired Company is or will
be required to give any notice to or obtain Consent from any Person in
connection with the execution and delivery of this Agreement or the consummation
or performance of any of the Contemplated Transactions.

     (c) Sellers are acquiring IOI shares for their own account and not with a
view to their distribution within the meaning of Section 2(11) of the Securities
Act.  Except with respect to Perezous, each Seller is an "accredited investor"
as such term is defined in Rule 501(a) under the Securities Act.

     3.3  CAPITALIZATION.  The authorized equity securities of the Acquired
Company are as reflected on Exhibit 3.3, which also reflects that portion
thereof which are issued and outstanding and the par value thereof, the record
and beneficial ownership of all such issued and outstanding shares. Sellers are
and will be on the Closing Date the record and beneficial owners and holders of
all such issued and outstanding shares, free and clear of all Encumbrances. All
of the outstanding equity securities and other securities of the Acquired
Company are owned of record and beneficially by the Acquired Company or Sellers,
free and clear of all Encumbrances.  No legend or other reference to any
purported Encumbrance appears upon any certificate representing equity
securities of the Acquired Company.  All of the outstanding equity securities of
the Acquired Company have been duly authorized and validly issued and are fully
paid and nonassessable.  There are no Contracts relating to the issuance, sale,
or transfer of any equity securities or other securities of the Acquired
Company.  None of the outstanding equity securities or other securities of the
Acquired Company was issued in violation of the Securities Act or any other
applicable state or federal securities laws or any other Legal Requirement.  The
Acquired Company does not own, nor has any Contract to acquire, any equity
securities or other securities of any Person (other than Acquired Company) or
any direct or indirect equity or ownership interest in any other business.

     3.4  FINANCIAL STATEMENTS.  Sellers have delivered to Buyer:  (a) audited
balance sheets of the Acquired Company at December 31, 1996 and 1995, and the
related statements of income, changes in stockholders' equity, and changes in
cash for each of the fiscal years then ended (the "Financial Statements"), and
(b) an audited balance sheet and the related statements of income, changes in
stockholders' equity, and changes in cash of the Acquired Company as of October
31, 1997 (the "Interim Financial Statements") in each case with the notes and
with the reports thereon of independent certified public accountants admitted to
practice before the Securities and Exchange Commission.  Such financial
statements and notes fairly present the financial condition, revenues, expenses,
changes in stockholders' equity and cash position, and the results of operations
of the Acquired Company as of the respective dates of and for the

                                       14
<PAGE>
 
periods referred to in such financial statements, all in accordance with GAAP.
The financial statements referred to in this Section 3.4 reflect the consistent
application of such accounting principles throughout the periods involved.  No
financial statements of any Person other than the Acquired Company are required
by GAAP to be included in the financial statements of the Acquired Company.

     3.5  BOOKS AND RECORDS.  The books of account, minute books, stock record
books, and other records of the Acquired Company, all of which have been made
available to Buyer, are complete and accurate and have been maintained in
accordance with sound business practices, including the maintenance of an
adequate system of internal controls.  The minute book of the Acquired Company
contains accurate and complete records of all meetings held of, and corporate
action taken by, the stockholders, the Boards of Directors, and committees of
the Boards of Directors of the Acquired Company, and no meeting of any such
stockholders, Board of Directors, or committee has been held for which minutes
have not been prepared and are not contained in such minute book.  At the
Closing, the book and records will be in the possession of the Acquired Company.

     3.6  TITLE TO PROPERTIES; ENCUMBRANCES.  Schedule 3.6 contains a complete
and accurate list of all real property, leaseholds, or other interests therein
owned by the Acquired Company.  Sellers have delivered or made available to
Buyer copies of the deeds and other instruments (as recorded) by which the
Acquired Company acquired such real property and interests, and copies of all
title insurance policies, opinions, abstracts, and surveys in the possession of
Sellers or the Acquired Company and relating to such property or interests.  The
Acquired Company owns (with good and marketable title in the case of real
property, subject only to the matters permitted by the following sentence) all
the properties and assets (whether real, personal, or mixed and whether tangible
or intangible) that it purports to own located in the facilities owned or
operated by the Acquired Company or reflected as owned in the books and records
of the Acquired Company, including all of the properties and assets reflected in
the Financial Statements and the Interim Financial Statements (except for assets
held under capitalized leases disclosed or not required to be disclosed in
Schedule 3.6 and personal property sold since the date of the Financial
Statements and the Interim Financial Statements, as the case may be, in the
Ordinary Course of Business or as set forth in the Contemplated Transactions),
and all of the properties and assets purchased or otherwise acquired by the
Acquired Company since the date of the Financial Statements (except for personal
property acquired and sold since the date of the Financial Statements in the
Ordinary Course of Business and consistent with past practice) which
subsequently purchased or acquired properties and assets (other than inventory
and short-term investments) are listed in Schedule 3.6. All material properties
and assets reflected in the Financial Statements and the Interim Financial
Statements are free and clear of all Encumbrances and are not, in the case of
real property, subject to any rights of way, building use restrictions,
exceptions, variances, reservations, or limitations of any nature except, with
respect to all such properties and assets, (a) mortgages or security interests
shown on the Financial Statements or the Interim Financial Statements as
securing specified liabilities or obligations, with respect to which no default
(or event that, with notice or lapse of time or both, would constitute a
default) exists, (b) mortgages or security interests incurred in connection with
the purchase of property or assets after the date of the Interim Financial
Statements (such mortgages and security interests being limited to the property
or assets so acquired), with respect

                                       15
<PAGE>
 
to which no default (or event that, with notice or lapse of time or both, would
constitute a default exists, (c) liens for current taxes not yet due, and (d)
with respect to real property, (i) minor imperfections of title, if any, none of
which is substantial in amount, materially detracts from the value or impairs
the use of the property subject thereto, or impairs the operations of the
Acquired Company, and (ii) zoning laws and other land use restrictions that do
not impair the present or anticipated use of the property subject thereto.  All
buildings, plants, and structures owned by the Acquired Company lie wholly
within the boundaries of the real property owned by the Acquired Company and do
not encroach upon the property of, or otherwise conflict with the property
rights of, any other Person.

     3.7  CONDITION AND SUFFICIENCY OF ASSETS.  The buildings, plants,
structures, and equipment of the Acquired Company are structurally sound, are in
good operating condition and repair, and are adequate for the uses to which they
are being put, and none of such buildings, plants, structures, or equipment is
in need of maintenance or repairs except for ordinary, routine maintenance and
repairs that are not material in nature or cost.  The building, plants,
structures, and equipment of the Acquired Company are sufficient for the
continued conduct of the Acquired Company's businesses after the Closing in
substantially the same manner as conducted prior to the Closing.

     3.8  ACCOUNTS RECEIVABLE.  As of the Closing Date all accounts receivable
of the Acquired Company (formerly the  Existing Practice) have been sold to IOI
under separate terms and conditions of Accounts Receivable Bills of Sale and
Assignment of even date herewith and the cash proceeds from such sales
distributed to Sellers.  There are no accounts receivable of the Acquired
Company to be sold to IOI under this Stock Purchase Agreement.

     3.9  INVENTORY.  All inventory of the Acquired Company, whether or not
reflected in the Financial Statements or the Interim Financial Statements,
consists of a quality and quantity usable and salable in the Ordinary Course of
Business, except for obsolete items and items of below-standard quality, all of
which have been written off or written down to net realizable value in the
Financial Statements or the Interim Financial Statements or on the accounting
records of the Acquired Company as of the Closing Date, as the case may be.  All
inventories not written off have been priced at the lower of cost or market net
realizable value on a first in, first out basis.  Except as set forth in
Schedule 3.9, the quantities of each item of inventory (whether raw materials,
work-in-process, or finished goods) are not excessive, but are reasonable in the
present circumstances of the Acquired Company.

     3.10 NO LIABILITIES.  Except as set forth in Schedule 2.1(d), the Acquired
Company has no liabilities, guaranties or obligations of any nature (whether
known or unknown and whether absolute, accrued, contingent, or otherwise).

     3.11 TAXES.

     (a) The Acquired Company has filed or caused to be filed (on a timely
basis) all Tax Returns that are or were required to be filed by or with respect
to the Acquired Company, separately or as a member of a group of corporations,
pursuant to applicable Legal Requirements.  Sellers have delivered to Buyer
copies of, and Schedule 3.11 contains a complete

                                       16
<PAGE>
 
and accurate list of, all such Tax Returns filed since January 1, 1990.  The
Acquired Company has paid, or made provision for the payment of, all Taxes that
have or may have become due pursuant to those Tax Returns or otherwise, or
pursuant to any assessment received by Sellers or the Acquired Company, except
such Taxes, if any, as are listed in Schedule 3.11 and are being contested in
good faith and as to which adequate reserves (determined in accordance with
GAAP) have been provided in the Financial Statements and the Interim Financial
Statements.

     (b) The United States federal and state income Tax Returns of the Acquired
Company subject to such Taxes have been audited by the IRS or relevant state tax
authorities or are closed by the applicable statute of limitations for all
taxable years through 1994.  Schedule 3.11 contains a complete and accurate list
of all audits of all such Tax Returns, including a reasonably detailed
description of the nature and outcome of each audit.  All deficiencies proposed
as a result of such audits have been paid, reserved against, settled, or, as
described in Schedule 3.11, are being contested in good faith by appropriate
proceedings. Schedule 3.11 describes all adjustments to the United States
federal income Tax Returns filed by the Acquired Company or any group of
corporations including the Acquired Company for all taxable years since 1990,
and the resulting deficiencies proposed by the IRS.  Except as described in
Schedule  3.11, the Acquired Company has not given or been requested to give
waivers or extensions (or is or would be subject to a waiver or extension given
by any other Person) of any statute of limitations relating to the payment of
Taxes of the Acquired Company or for which the Acquired Company may be liable.

     (c) The charges, accruals, and reserves with respect to Taxes on the
respective books of the Acquired Company are adequate (determined in accordance
with GAAP) and are at least equal to the Acquired Company's liability for Taxes.
There exists no proposed tax assessment against the Acquired Company except as
disclosed in the Financial Statements, Interim Financial Statements, or in
Schedule 3.11.  No consent to the application of Section 341(f)(2) of the Code
has been filed with respect to any property or assets held, acquired, or to be
acquired by the Acquired Company.  All Taxes that the Acquired Company is or was
required by Legal Requirements to withhold or collect have been duly withheld or
collected and, to the extent required, have been paid to the proper Governmental
Body or other Person.

     (d) All Tax Returns filed by (or that include on a consolidated basis) the
Acquired Company are true, correct, and complete.  There is no tax sharing
agreement that will require any payment by the Acquired Company after the date
of this Agreement.  The Acquired Company, within the five-year period preceding
the Closing Date, has not been part of a consolidated federal income tax return.

     (e) The Acquired Company has filed or caused to be filed all federal excise
tax returns that are or were required to be filed and the Acquired Company has
paid, or made provision for the payment of, all excise taxes that have or may
have become due pursuant to those Tax Returns or otherwise or pursuant to any
assessment received by the Acquired Company, except for those as to which are
being contested in good faith (as listed in Schedule 3.11) or those as to which
adequate reserve has been provided in the Financial Statements or the Interim
Financial Statements.

                                       17
<PAGE>
 
     3.12 NO MATERIAL ADVERSE CHANGE.  Since the date of the Financial
Statements, or the Interim Financial Statements, there has not been any material
adverse change in the business, operations, properties, prospects, assets, or
condition of the Acquired Company, and no event has occurred or circumstance
exists that may result in such a material adverse change.

     3.13 EMPLOYEE BENEFITS.

     (a) As used in this Section 3.13, the following terms have the meanings set
forth below.

     "Company Other Benefit Obligation" means an Other Benefit Obligation owed,
adopted, or followed by the Acquired Company or an ERISA Affiliate of the
Acquired Company.

     "Company Plan" means all Plans of which the Acquired Company or an ERISA
Affiliate of the Acquired Company is or was a Plan Sponsor, or to which the
Acquired Company or an ERISA Affiliate of the Acquired Company otherwise
contributes or has contributed, or in which the Acquired Company or an ERISA
Affiliate of the Acquired Company otherwise participates or has participated.
All references to Plans are to Company Plans unless the context requires
otherwise.

     "Multi-Employer Plan"  has the meaning given in ERISA (S) 3(37)A.

     "Other Benefit Obligations" means all obligations, arrangements, or
customary practices, whether or not legally enforceable, to provide benefits,
other than salary, as compensation for services rendered, to present or former
directors, employees, or agents, other than obligations, arrangements, and
practices that are Plans.  Other Benefit Obligations include consulting
agreements under which the compensation paid does not depend upon the amount of
service rendered, sabbatical policies, severance payment policies, and fringe
benefits within the meaning of Code (S) 132.

     "PBGC" means the Pension Benefit Guaranty Corporation, or any successor
thereto.

     "Pension Plan" has the meaning given in ERISA (S) 3(2)(A).

     "Plan" has the meaning given in ERISA (S) 3(3).

     "Plan Sponsor" has the meaning given in ERISA (S) 3(16)(B).

     "Qualified Plan" means any Plan that meets or purports to meet the
requirements or Code (S) 401(a).

     "Title IV Plans" means all Pension Plans that are subject to Title IV of
ERISA, 29 U.S.C. (S) 1301 et seq.

     "VEBA" means voluntary employees' beneficiary association under Code (S)
501(c)(9).

                                       18
<PAGE>
 
     "Welfare Plan" has the meaning given in ERISA (S) 3(1).

     (b)  (i)  Schedule 3.13(b)(i) contains a complete and accurate list of all
     Company Plans, Company Other Benefit Obligations, and Company VEBAs, and
     identifies as such all Company Plans that are (A) defined benefit Pension
     Plans, (B) Qualified Plans, (C) Title IV Plans, or (D) Multi-Employer
     Plans.

          (ii) Schedule 3.13(b)(ii) contains a complete and accurate list of (A)
     all ERISA Affiliates of the Acquired Company, and (B) all Plans of which
     any such ERISA Affiliate is or was a Plan Sponsor, in which any such ERISA
     Affiliate participates or has participated, or to which any such ERISA
     Affiliate contributes or has contributed.

          (iii)  Schedule 3.13(iii) sets forth, for each Multi-Employer Plan, as
     of its last valuation date, the amount of potential withdrawal liability of
     the Acquired Company and the Acquired Company's other ERISA Affiliates,
     calculated according to information made available pursuant to ERISA (S)
     4221(e).

          (iv) Schedule 3.13(iv) sets forth a calculation of the liability of
     the Acquired Company for post-retirement benefits other than pensions, made
     in accordance with Financial Accounting Statement 106 of the Financial
     Accounting Standards Board, regardless of whether the Acquired Company is
     required by this Statement to disclose such information.

          (v) Schedule 3.13(b)(iii) sets forth the financial cost of all
     obligations owed under any Company Plan or Company Other Benefit Obligation
     that is not subject to the disclosure and reporting requirements of ERISA.

     (c) Sellers have delivered to Buyer:

          (i) all documents that set forth the terms of each Company Plan,
     Company Other Benefit Obligation, Company VEBA and of any related trust and
     any related funding obligation, including (A) all plan descriptions and
     summary plan descriptions of Company Plans for which Sellers or the
     Acquired Company are required to prepare, file, and distribute plan
     descriptions and summary plan descriptions, and (B) all summaries and
     descriptions furnished to participants and beneficiaries regarding Company
     Plans and, Company Other Benefit Obligations and Company VEBAs for which a
     plan description or summary plan description is not required;

          (ii) all current personnel, payroll, and employment manuals and
     policies;

          (iii)  any collective bargaining agreements pursuant to which
     contributions have been or are being made or obligations incurred
     (including both pension and welfare benefits) by the Acquired Company and
     the ERISA Affiliates of the Acquired Company;

          (iv) a written description of any Company Plan or Company Other
     Benefit Obligation that is not otherwise in writing;

                                       19
<PAGE>
 
          (v) all registration statements filed with respect to any Company
     Plan;

          (vi) all insurance policies purchased by or to provide benefits under
     any Company Plan;

          (vii)  all contracts with third party administrators, actuaries,
     investment managers, consultants, and other independent contractors that
     relate to any Company Plan, Company Other Benefit Obligation, or Company
     VEBA;

          (viii)  all reports submitted within the four years preceding the date
     of this Agreement by third party administrators, actuaries, investment
     managers, consultants, or other independent contractors with respect to any
     Company Plan, Company Other Benefit Obligation or Company VEBA;

          (ix) all notifications to employees of their rights under ERISA (S)
     601 et seq. and IRC (S) 4980B;

          (x) the Form 5500 filed in each of the most recent three plan years
     with respect to each Company Plan, including all schedules thereto and the
     opinions of independent accountants;

          (xi) all notices that were given by or to the IRS, the PBGC, or the
     Department of Labor to the Acquired Company, any ERISA Affiliate of the
     Acquired Company, or any Company Plan within the four years preceding the
     date of this Agreement;

          (xii)  with respect to Qualified Plans and VEBAs, the most recent
     determination letter for each Plan of the Acquired Company that is a
     Qualified Plan; and

          (xiii)  with respect to Title IV Plans, the Form PBGC-1 filed for each
     of the three most recent plan years.

     (d)  (i)  The Acquired Company has performed all of its respective
     obligations under all Company Plans and Company Other Benefit Obligations.
     The Acquired Company has made appropriate entries in its financial records
     and statements for all obligations and liabilities under such Plans, VEBAs,
     and Obligations that have accrued but are not due.

          (ii) No statement, either written or oral, has been made by the
     Acquired Company to any Person with regard to any Plan or Other Benefit
     Obligation that was not in accordance with the Plan or Other Benefit
     Obligation and that could have an adverse economic consequence to the
     Acquired Company or to Buyer.

          (iii)  The Acquired Company, with respect to all Company Plans,
     Company Other Benefits Obligations, and Company VEBAs, is, and each Company
     Plan, Company Other Benefit Obligation, and Company VEBAs, is, in full
     compliance with ERISA, the

                                       20
<PAGE>
 
     Code, and other applicable Laws including the provisions of such Laws
     expressly mentioned in this Section 3.13, and with any applicable
     collective bargaining agreement.

               (A)  No transaction prohibited by ERISA (S) 406 and no
                    "prohibited transaction" under Code (S) 4975(c) have
                    occurred with respect to any Company Plan.

               (B)  No Seller or Acquired Company has any liability to the IRS
                    with respect to any Plan.

               (C)  No Seller or Acquired Company has any liability under ERISA
                    (S) 502 or (S) 4071.

               (D)  All filings required by ERISA and the IRC as to each Plan
                    have been timely filed, and all notices and disclosures to
                    participants required by either ERISA or the IRC have been
                    timely provided.

               (E)  All contributions and payments made or accrued with respect
                    to all Company Plans, Company Other Benefit Obligations, and
                    Company VEBAs are deductible under Code (S) 162 or (S) 404.
                    No amount, or any asset of any Company Plan, is subject to
                    tax as unrelated business taxable income.

          (iv) Each Company Plan can be terminated within thirty days, without
     payment of any additional contribution or amount and without the vesting or
     acceleration of any benefits promised by such Plan.

          (v) To Sellers or the Acquired Company's Knowledge, no event has
     occurred or circumstance exists that could result in a material increase in
     premium costs of Company Plans and Company Other Benefit Obligations that
     are insured, or a material increase in benefit costs of such Plans and
     Obligations that are self-insured.

          (vi) Other than claims for benefits submitted by participants or
     beneficiaries, no claim against, or legal proceeding involving, any Company
     Plan or Company Other Benefit Obligation, is pending or, to Sellers'
     Knowledge, is Threatened.

          (vii)  Each Qualified Plan of the Acquired Company is qualified in
     form and operation under Code (S) 401(a); each trust or Company VEBA for
     each such Plan is exempt from federal income tax under Code (S) 501(a).  No
     event has occurred or circumstance exists that will or could give rise to
     disqualification or loss of tax-exempt status of any such Plan or trust.

          (viii)  The Acquired Company and each ERISA Affiliate of the Acquired
     Company has met the minimum funding standard, and has made all
     contributions required, under ERISA (S) 302 and IRC (S) 402.

                                       21
<PAGE>
 
          (ix) No Company Plan is subject to Title IV of ERISA.

          (x) The Acquired Company has paid all amounts due to the PBGC pursuant
     to ERISA (S) 4007.

          (xi) Neither the Acquired Company nor any ERISA Affiliate of the
     Acquired Company has ceased operations at any facility or has withdrawn
     from any Title IV Plan in a manner that would subject any entity or Sellers
     to liability under ERISA (S) 4062(e), (S) 4063, or (S) 4064.

          (xii)  Except as contemplated by Section 5.9, neither Acquired Company
     nor any ERISA Affiliate of the Acquired Company has filed a notice of
     intent to terminate any Plan or has adopted any amendment to treat a Plan
     as terminated. The PBGC has not instituted proceedings to treat any Company
     Plan as terminated. No event has occurred or circumstance exists that may
     constitute grounds under ERISA (S) 4042 for the termination of, or the
     appointment of a trustee to administer, any Company Plan.

          (xiii)  No amendment has been made, or is reasonably expected to be
     made, to any Plan that has required or could require the provision of
     security under ERISA (S) 307 or IRC (S) 401(a)(29).

          (xiv)  No accumulated funding deficiency, whether or not waived,
     exists with respect to any Company Plan; no event has occurred or
     circumstance exists that may result in an accumulated funding deficiency as
     of the last day of the current plan year of any such Plan.

          (xv) The actuarial report for each Pension Plan of the Acquired
     Company and each ERISA Affiliate of the Acquired Company fairly presents
     the financial condition and the results of operations of each such Plan in
     accordance with GAAP.

          (xvi)  Since the last valuation date for each Pension Plan of the
     Acquired Company and each ERISA Affiliate of the Acquired Company, no event
     has occurred or circumstance exists that would increase the amount of
     benefits under any such Plan or that would cause the excess of Plan assets
     over benefit liabilities (as defined in ERISA (S) 4001) to decrease, or the
     amount by which benefit liabilities exceed assets to increase.

          (xvii)  No reportable event (as defined in ERISA (S) 4043 and in
     regulations issued thereunder) has occurred.

          (xviii)  Neither the Sellers nor Acquired Company has Knowledge of any
     facts or circumstances that may give rise to any liability of any Seller,
     the Acquired Company, or Buyer to the PBGC under Title IV of ERISA.

          (xix)  Neither the Acquired Company nor any ERISA Affiliate of the
     Acquired Company has ever established, maintained, or contributed to or
     otherwise participated

                                       22
<PAGE>
 
     in, or had an obligation to maintain, contribute to, or otherwise
     participate in, any Multi-Employer Plan.

          (xx) Neither the Acquired Company nor any ERISA Affiliate of the
     Acquired Company has withdrawn from any Multi-Employer Plan with respect to
     which there is any outstanding liability as of the date of this Agreement.
     No event has occurred or circumstance exists that presents a risk of the
     occurrence of any withdrawal from, or the participation, termination,
     reorganization, or insolvency of, any Multi-Employer Plan that could result
     in any liability of either the Acquired Company or Buyer to a Multi-
     Employer Plan.

          (xxi)  Neither the Acquired Company nor any ERISA Affiliate of the
     Acquired Company has received notice from any Multi-Employer Plan that it
     is in reorganization or is insolvent, that increased contributions may be
     required to avoid a reduction in plan benefits or the imposition of any
     excise tax, or that such Plan intends to terminate or has terminated.

          (xxii)  No Multi-Employer Plan to which the Acquired Company or any
     ERISA Affiliate of the Acquired Company contributes or has contributed is a
     party to any pending merger or asset or liability transfer or is subject to
     any proceeding brought by the PBGC.

          (xxiii)  Except to the extent required under ERISA (S) 601 et seq. and
     Code (S) 4980B, the Acquired Company provides no health or welfare benefits
     for any retired or former employee or is obligated to provide health or
     welfare benefits for any retired or former employee or is obligated to
     provide health or welfare benefits to any active employee following such
     employee's retirement or other termination of service.

          (xxiv)  The Acquired Company has the right to modify and terminate
     benefits to retirees (other than pensions) with respect to both retired and
     active employees.

          (xxv)  Sellers and the Acquired Company have complied with the
     provisions of ERISA (S) 601 et seq. and Code (S) 4980B.

          (xxvi)  No payment that is owed or may become due to any director,
     officer, employee, or agent of the Acquired Company will be nondeductible
     to the Acquired Company or subject to tax under Code (S) 280G or (S) 4999;
     nor will the Acquired Company be required to "gross up" or otherwise
     compensate any such person because of the imposition of any excise tax on a
     payment to such person.

          (xxvii)  The consummation of the Contemplated Transactions will not
     result in the payment, vesting, or acceleration of any benefit.

                                       23
<PAGE>
 
     3.14 COMPLIANCE WITH LEGAL REQUIREMENTS; GOVERNMENTAL AUTHORIZATIONS.

     (a) Except as set forth in Schedule 3.14:

          (i) the Acquired Company is, and at all times has been, in full
     compliance with each Legal Requirement that is or was applicable to it or
     to the conduct or operation of its business or the ownership or use of any
     of its assets;

          (ii) no event has occurred or circumstance exists that (with or
     without notice or lapse of time) (A) may constitute or result in a
     violation by the Acquired Company of, or a failure on the part of the
     Acquired Company to comply with, any Legal Requirement, or (B) may give
     rise to any obligation on the part of the Acquired Company to undertake, or
     to bear all or any portion of the cost of, any remedial action of any
     nature; and

          (iii)  the Acquired Company has not received at any time any notice or
     other communication (whether oral or written) from any Governmental Body or
     any other Person regarding (A) any actual, alleged, possible, or potential
     violation of, or failure to comply with, any Legal Requirement, or (B) any
     actual, alleged, possible, or potential obligation on the part of the
     Acquired Company to undertake, or to bear all or any portion of the cost
     of, any remedial action of any nature.

     (b) Schedule 3.14 contains a complete and accurate list of each
Governmental Authorization that is held by the Acquired Company or that
otherwise relates to the business of, or to any of the assets owed or used by,
the Acquired Company.  Each Governmental Authorization listed or required to be
listed in Schedule 3.14 is valid and in full force and effect.  Except as set
forth in Schedule 3.14:

          (i) the Acquired Company is, and at all times has been, in full
     compliance with all of the terms and requirements of each Governmental
     Authorization identified or required to be identified in Schedule 3.14;

          (ii) no event has occurred or circumstance exists that may (with or
     without notice or lapse of time) (A) constitute or result directly or
     indirectly in a violation of or a failure to comply with any term or
     requirement of any Governmental Authorization listed or required to be
     listed in Schedule 3.14, or (B) result directly or indirectly in the
     revocation, withdrawal, suspension, cancellation, or termination of, or any
     modification to, any Governmental Authorization listed or required to be
     listed in Schedule 3.14;

          (iii)  the Acquired Company has not received at any time any notice or
     other communication (whether oral or written) from any Governmental Body or
     any other Person regarding (A) any actual, alleged, possible, or potential
     violation of or failure to comply with any term or requirement of any
     Governmental Authorization, (B) any actual, proposed, possible, or
     potential revocation, withdrawal, suspension, cancellation, termination of,
     or modification to any Governmental Authorization; and

                                       24
<PAGE>
 
          (iv) all applications required to have been filed for the renewal of
     the Government Authorizations listed or required to be listed in Schedule
     3.14 have been duly filed on a timely basis with the appropriate
     Governmental Bodies, and all other filings required to have been made with
     respect to such Governmental Authorizations have been duly made on a timely
     basis with the appropriate Governmental Bodies.

The Governmental Authorizations listed in Schedule 3.14 collectively constitute
all of the Governmental Authorizations necessary to permit the Acquired Company
to lawfully conduct and operate its business in the manner it currently conducts
and operates such business and to permit the Acquired Company to own and use its
assets in the manner in which it currently owns and uses such assets.

     3.15 LEGAL PROCEEDINGS; ORDERS.

     (a) Except as set forth in Schedule 3.15, there is no pending Proceeding:

          (i) that has been commenced by or against the Acquired Company or any
     Seller or that otherwise relates to or may affect the business of, or any
     of the assets owned or used by, the Acquired Company; or

          (ii) That challenges, or that may have the effect of preventing,
     delaying, making illegal, or otherwise interfering with, any of the
     Contemplated Transactions.

To the Knowledge of Sellers and the Acquired Company, (1) no such Proceeding has
been Threatened, and (2) no event has occurred or circumstances exists that may
give rise to or serve as a basis for the commencement of any such Proceeding.
Sellers have delivered to Buyer copies of all pleadings, correspondence, and
other documents relating to each Proceeding listed in Schedule 3.15;

     The Proceedings listed in Schedule 3.15 will not have a material adverse
effect on the business, operations, assets, condition, or prospects of the
Acquired Company.

     (b) Except as set forth in Schedule 3.15:

          (i) there is no Order to which the Acquired Company, or any of the
     assets owned or used by the Acquired Company, is subject;

          (ii) no Seller is subject to any Order that relates to the business
     of, or any of the assets owned or used by, the Acquired Company; and

          (iii)  to the Knowledge of Sellers and the Acquired Company, no
     officer, director, agent, or employee of the Acquired Company is subject to
     any Order that prohibits such officer, director, agent, or employee from
     engaging in or continuing any conduct, activity, or practice relating to
     the business of the Acquired Company.

                                       25
<PAGE>
 
     (c) Except as set forth in Schedule 3.15:

          (i) the Acquired Company is, and at all times has been, in full
     compliance with all of the terms and requirements of each Order to which
     it, or any of the assets owned or used by it, is or has been subject;

          (ii) no event has occurred or circumstance exists that may constitute
     or result in (with or without notice or lapse of time) a violation of or
     failure to comply with any term or requirement of any Order to which the
     Acquired Company, or any of the assets owned or used by the Acquired
     Company, is subject; and

          (iii)  the Acquired Company has not received at any time any notice or
     other communication (whether oral or written) from any Governmental Body or
     any other Person regarding any actual, alleged, possible, or potential
     violation of, or failure to comply with, any term or requirement of any
     Order to which the Acquired Company, or any of the assets owned or used by
     the Acquired Company, is or has been subject.

     3.16 ABSENCE OF CERTAIN CHANGES AND EVENTS.    Except as set forth in
Schedule 3.16 or as set forth in the Contemplated Transactions, since the date
of the Interim Financial Statements, the Acquired Company has conducted its
business only in the Ordinary Course of Business and there has not been any:

     (a) change in the Acquired Company's authorized or issued capital stock;
grant of any stock option or right to purchase shares of capital stock of the
Acquired Company; issuance of any security convertible into such capital stock;
grant of any registration rights; purchase, redemption, retirement, or other
acquisition by the Acquired Company of any shares of any such capital stock; or
declaration or payment of any dividend or other distribution or payment in
respect of shares of capital stock;

     (b) amendment to the Organizational Documents of the Acquired Company
(except as set forth in the Contemplated Transactions);

     (c) except as to a distribution of all or a portion of the proceeds to
Sellers from the transaction set forth in (a) of the definition of Contemplated
Transactions, payment or increase by the Acquired Company of any bonuses,
salaries, or other compensation to any stockholder, director, officer, or
(except in the Ordinary Course of Business) employee or entry into any
employment, severance, or similar Contract with any director, officer, or
employee;

     (d) adoption of, or increase in the payments to or benefits under, any
profit sharing, bonus, deferred compensation, savings, insurance, pension,
retirement, or other employee benefit plan for or with any employees of the
Acquired Company;

     (e) damage to or destruction or loss of any asset or property of the
Acquired Company, whether or not covered by insurance, materially and adversely
affecting the properties, assets, business, financial condition, or prospects of
the Acquired Company, taken as a whole;

                                       26
<PAGE>
 
     (f) entry into, termination of, or receipt of notice of termination of (i)
any license, joint venture, credit, or similar agreement, or (ii) any Contract
or transaction involving a total remaining commitment by the Acquired Company
taken together of at least $5,000;

     (g) sale (other than sales of inventory in the Ordinary Course of
Business), lease, or other disposition of any asset or property of the Acquired
Company or mortgage, pledge, or imposition of any lien or other encumbrance on
any material asset or property of the Acquired Company, including the sale,
lease, or other disposition of any of the Intellectual Property Assets (except
as set forth in the Contemplated Transactions);

     (h) cancellation or waiver of any claims or rights with a value to the
Acquired Company taken together in excess of $5,000;

     (i) incurrence of any indebtedness, assumption of any liability, or
issuance of any guarantee of the indebtedness or liability of a Person;

     (j) change in the accounting methods used by the Acquired Company; or

     (k) agreement, whether oral or written, by the Acquired Company to do any
of the foregoing.

     3.17 CONTRACTS; NO DEFAULTS.

     (a) Schedule 3.17(a) contains a complete and accurate list, and Sellers
have delivered to Buyer true and complete copies, of:

          (i) each Applicable Contract that involves performance of services or
     delivery of goods or materials by the Acquired Company taken together or to
     the Acquired Company taken together of an amount or value in excess of
     $5,000;

          (ii) each Applicable Contract that was not entered into in the
     Ordinary Course of Business and that involves expenditures or receipts of
     the Acquired Company taken together in excess of $5,000;

          (iii)  each lease, rental or occupancy agreement, license, and other
     Applicable Contract affecting the ownership of, leasing of, title to, use
     of, or any leasehold or other interest in, any real or personal property
     (except personal property leases having a value per item or aggregate
     payments of less than $5,000 and with terms of less than one year);

          (iv) each licensing agreement or other Applicable Contract with
     respect to patents, trademarks, copyrights, or other intellectual property,
     including agreements with current or former employees, consultants, or
     contractors regarding the appropriation or the non-disclosure any of the
     Intellectual Property Assets;

                                       27
<PAGE>
 
          (v) each collective bargaining agreement and other Applicable Contract
     to or with any labor union or other employee representative of a group of
     employees relating to wages, hours, and other conditions of employment;

          (vi) each joint venture, partnership, and other Applicable Contract
     (however named) involving a sharing of profits, losses, costs, or
     liabilities by the Acquired Company with any other Person;

          (vii)  each Applicable Contract containing covenants that in any way
     purport to restrict the Acquired Company's business activity or limit the
     freedom of the Acquired Company to engage in any line of business or to
     compete with any Person;

          (viii)  each Applicable Contract providing for payments to or by any
     Person based on sales, purchases, or profits, other than direct payments
     for goods;

          (ix) each power of attorney that is currently effective and
     outstanding;

          (x) each Applicable Contract entered into other than in the Ordinary
     Course of Business that contains or provides for an express undertaking by
     the Acquired Company to be responsible for consequential damages;

          (xi) each Applicable Contract for capital expenditures in excess of
     $5,000;

          (xii)  each written warranty, guaranty, and or other similar
     undertaking with respect to contractual performance extended by the
     Acquired Company other than in the Ordinary Course of Business; and

          (xiii)  each amendment, supplement, and modification (whether oral or
     written) in respect of any of the foregoing.

Schedule 3.17(a) sets forth reasonably complete details concerning such
Contracts, including the parties to the Contracts, the amount of the remaining
commitment of the Acquired Company under the Contracts, and the Acquired
Company's offices where details relating to the Contracts are located.

     (b) Except as set forth in Schedule 3.17(b) or as is set forth in the
Contemplated Transactions:

          (i) no Seller nor any Related Person of Seller has or may acquire any
     rights under, and no Seller has or may become subject to any obligation or
     liability under, any Contract that relates to the business of, or any of
     the assets owned or used by, the Acquired Company; and

          (ii) to the Knowledge of Sellers and the Acquired Company, no officer,
     director, agent, employee, consultant, or contractor of the Acquired
     Company is bound by any Contract that purports to limit the ability of such
     officer, director, agent,

                                       28
<PAGE>
 
     employee, consultant, or contractor to (A) engage in or continue any
     conduct, activity, or practice relating to the business of the Acquired
     Company, or (B) assign to the Acquired Company or to any other Person any
     rights to any invention, improvement, or discovery.

     (c) Except as set forth in Schedule 3.17(c), each Contract identified or
required to be identified in Schedule 3.17(a) is in full force and effect and is
valid and enforceable in accordance with its terms and that no arrangements
exist which are not reflected on the Financial Statements and the Interim
Financial Statements, and that no default (with respect to the default of third
parties, only to the Knowledge of Sellers) exists under any such agreements.

     (d) Except as set forth in Schedule 3.17(d):

          (i) Acquired Company is, and at all times since January 1, 1995 has
     been, in full compliance with all applicable terms and requirements of each
     Contract under which such Acquired Company has or had any obligation or
     liability in excess of $5,000 or by which such Acquired Company or any of
     the assets owned or used by such Acquired Company with a value in excess of
     $5,000 is or was bound;

          (ii) to Sellers' Knowledge, each other Person (other than a Seller)
     that has or had any obligation or liability under any Contract under which
     the Acquired Company has or had any rights and involving any obligation or
     liability in excess of $5,000 is, and at all times since January 1, 1995
     has been, in full compliance with all applicable terms and requirements of
     such Contract;

          (iii)  no event has occurred or circumstance exists that (with or
     without notice or lapse of time) may contravene, conflict with, or result
     in a violation or breach of, or give the Acquired Company or other Person
     (with respect to breaches or violations by third parties, only to the
     Knowledge of Sellers) the right to declare a default or exercise any remedy
     under, or to accelerate the maturity or performance of, or to cancel,
     terminate, or modify, any Applicable Contract; and

          (iv) the Acquired Company has not given to or received from any other
     Person, at any time since January 1, 1995, any notice or other
     communication (whether oral or written) regarding any actual, alleged,
     possible, or potential violation or breach of, or default under, any
     Contract involving any obligation or liability in excess of $5,000;

     (e) There are no renegotiations of, attempts to renegotiate, or outstanding
rights to renegotiate any material amounts paid or payable to the Acquired
Company under current or completed Contracts with any Person and no such Person
has made written demand for such renegotiation.

     (f) The Contracts relating to the sale, design, manufacture, or provision
of products or services by the Acquired Company have been entered into in the
Ordinary Course of Business and have been entered into without the commission of
any act alone or in concert with any other

                                       29
<PAGE>
 
Person, or any consideration having been paid or promised, that is or would be
in violation of any Legal Requirement.

     3.18 INSURANCE.

     (a) Sellers have delivered to Buyer:

          (i) true and complete copies of all policies of insurance to which the
     Acquired Company is a party or under which the Acquired Company, or any
     director of the Acquired Company, is or has been covered at any time within
     the three years preceding the date of this Agreement;

          (ii) true and complete copies of all pending applications for policies
     of insurance; and

          (iii)  any statement by the auditor of the Acquired Company's
     financial statements with regard to the adequacy of such entity's coverage
     or of the reserves for claims.

     (b)  Schedule 3.18(b) describes:

          (i) any self-insurance arrangement by or affecting the Acquired
     Company, including any reserves established thereunder;

          (ii) any contract or arrangement, other than a policy of insurance,
     for the transfer or sharing of any risk by the Acquired Company; and

          (iii)  all obligations of the Acquired Company to provide coverage to
     third parties (for example, under leases or service agreements) and
     identifies the policy under which such coverage is provided.

     (c) Schedule 3.18(c) sets forth, by year, for the current policy year and
each of the three preceding policy years:

          (i) a summary of the loss experience under each policy;

          (ii) a statement describing each claim under an insurance policy for
     an amount in excess of $1,000 which sets forth:

               (A)  the name of the claimant;

               (B)  a description of the policy by insurer, type of insurance,
                    and period of coverage; and

               (C)  the amount and a brief description of the claim; and

                                       30
<PAGE>
 
          (iii)  a statement describing the loss experience for all claims that
     were self-insured, including the number and aggregate cost of such claims.

     (d) Except as set forth on Schedule 3.18(d):

          (i) All policies to which the Acquired Company is a party or that
     provide coverage to the Acquired Company or officer or director thereof:

               (A)  are valid, outstanding, and enforceable;

               (B)  are issued by an insurer that is financially sound and
                    reputable;

               (C)  taken together, provide adequate insurance coverage for the
                    assets and the operations of the Acquired Company for all
                    risks to which the Acquired Company is normally exposed;

               (D)  are sufficient for compliance with all Legal Requirements
                    and Contracts to which the Acquired Company is a party or by
                    which any of them is bound;

               (E)  will continue in full force and effect following the
                    consummation of the Contemplated Transactions; and

               (F)  do not provide for any retrospective premium adjustment or
                    other experienced-based liability on the part of the
                    Acquired Company.

          (ii) No Seller or the Acquired Company has received (A) any refusal of
     coverage or any notice that a defense will be afforded with reservation of
     rights, or (B) any notice of cancellation or any other indication that any
     insurance policy is no longer in full force or effect or that the issuer of
     any policy is not willing or able to perform its obligations thereunder.

          (iii)  The Acquired Company has paid all premiums due, and has
     otherwise performed all of its obligations, under each policy to which the
     Acquired Company is a party or that provides coverage to the Acquired
     Company or director thereof.

          (iv) The Acquired Company has given notice to the insurer of all
     claims that may be insured thereby.

     3.19 ENVIRONMENTAL MATTERS.  Except as set forth in Schedule 3.19:

     (a) The Acquired Company is, and at all times prior to the date hereof has
been, in full compliance with, and has not been and is not in violation of or
liable under, any Environmental Law.  No Seller or the Acquired Company has any
basis to expect, nor has any of them or any other Person for whose conduct they
are or may be held to be responsible received, any actual or Threatened order,
notice, or other communication from (i) any

                                       31
<PAGE>
 
Governmental Body or private citizen acting in the public interest, or (ii) the
current or prior owner or operator of any Facilities, or any actual or potential
violation or failure to comply with any Environmental Law, or of any actual or
Threatened obligation to undertake or bear the cost of any Environmental,
Health, and Safety Liabilities with respect to any of the Facilities or any
other properties or assets (whether real, personal, or mixed) in which Sellers
or the Acquired Company has had an interest, or with respect to any property or
Facility at or to which Hazardous Materials were generated, manufactured,
refined, transferred, imported, used, or processed by Sellers, the Acquired
Company, or any other Person for whose conduct they are or may be held
responsible, or from which Hazardous Materials have been transported, treated,
stored, handled, transferred, disposed, recycled, or received.

     (b) There are no pending or, to the Knowledge of Sellers and the Acquired
Company, Threatened claims, Encumbrances, or other restrictions of any nature,
resulting from any Environmental, Health, and Safety Liabilities or arising
under or pursuant to any Environmental Law, with respect to or affecting any of
the Facilities or any other properties and assets (whether real, personal, or
mixed) in which Sellers or the Acquired Company has or had an interest.

     (c) No Seller or  the Acquired Company has Knowledge of any basis to
expect, nor has any of them or any other Person for whose conduct they are or
may be held responsible, received, any Order, notice, communication, inquiry,
warning, citation, summons, directive, or any other indication that relates to
Hazardous Activity, Hazardous Materials, or any alleged, actual, or potential
violation or failure to comply with any Environmental Law, or of any alleged,
actual, or potential obligation to undertake or bear the cost of any
Environmental, Health, and Safety Liabilities with respect to any of the
Facilities or any other properties or assets (whether real, personal, or mixed)
in which Sellers or the Acquired Company had an interest, or with respect to any
property or facility to which Hazardous Materials generated, manufactured,
refined, transferred, imported, used, or processed by Sellers, the Acquired
Company, or any other Person for whose conduct they are or may be held
responsible, have been transported, treated, stored, handled, transferred,
disposed, recycled, or received.

     (d) No Seller or the Acquired Company, or any other Person for whose
conduct they are or may be held responsible, has any Environmental, Health and
Safety Liabilities with respect to the Facilities or, to the Knowledge of
Sellers and the Acquired Company, with respect to any other properties and
assets (whether real, personal, or mixed) in which Sellers or the Acquired
Company (or any predecessor), has or had an interest, or at any property
geologically or hydrologically adjoining the Facilities or any such other
property or assets.

     (e) There are no Hazardous Materials present on or in the Environment at
the Facilities or at any geologically or hydrologically adjoining property,
including any Hazardous Materials contained in barrels, above or underground
storage tanks, landfills, land deposits, dumps, equipment (whether moveable or
fixed) or other containers, either temporary or permanent, and deposited or
located in land, water, sumps, or any other part of the Facilities or such
adjoining property, or incorporated into any structure therein or thereon.  No
Seller, the Acquired Company, any other Person for whose conduct they are or may
be held responsible, or to the Knowledge of Sellers and the Acquired Company,
any other Person, has permitted or conducted, or is aware of, any Hazardous
Activity conducted with respect to the Facilities or

                                       32
<PAGE>
 
any other properties or assets (whether real, personal, or mixed) in which
Sellers or the Acquired Company has or had an interest except in full compliance
with all applicable Environmental Law.

     (f) There has been no Release or, to the Knowledge of Sellers and the
Acquired Company, Threat of Release, of any Hazardous Materials at or from the
Facilities or at any other locations where any Hazardous Materials were
generated, manufactured, refined, transferred, produced, imported, used, or
processed from or by the Facilities, or from or by any other properties and
assets (whether real, personal, or mixed) in which Sellers or the Acquired
Company has or had an interest, or to the Knowledge of Sellers and the Acquired
Company any geologically or hydrologically adjoining property, whether by
Sellers, the Acquired Company, or any other Person.

     (g) Sellers have delivered to Buyer true and complete copies and results of
any reports, studies, analyses, tests, or monitoring possessed or initiated by
Sellers or the Acquired Company pertaining to Hazardous Materials or Hazardous
Activities in, on, or under the Facilities, or concerning compliance by Sellers,
the Acquired Company, or any other Person for whose conduct they are or may be
held responsible, with Environmental Laws.

     3.20 EMPLOYEES.

     (a) Schedule 3.20(a) contains a complete and accurate list of the following
information for each employee director, and officer of the Acquired Company,
including each employee on leave of absence or layoff status:  employer; name;
job title; current compensation paid or payable and any change in compensation
since January 1, 1995; vacation accrued; and service credited for purposes of
vesting and eligibility to participate under, and amounts vested or earned or to
which an employee is entitled under,  the Acquired Company's pension,
retirement, profit-sharing, thrift-savings, deferred compensation, stock bonus,
stock option, cash bonus, employee stock ownership (including investment credit
or payroll stock ownership), severance pay, insurance, medical, welfare, or
vacation plan, other Employee Pension Benefit Plan or Employee Welfare Benefit
Plan, or any other employee benefit plan.

     (b) No former or current employee or current or former officer or director
of the Acquired Company is a party to, or is otherwise bound by, any agreement
or arrangement, including any confidentiality, non-competition, or proprietary
rights agreement, between such employee, officer or director and any other
entity or person ("Proprietary Rights Agreement") that in any way adversely
affected, affects, or will affect (i) the performance of his duties as an
employee, officer or director of the Acquired Company, or (ii) the ability of
the Acquired Company to conduct its business, including any Proprietary Rights
Agreement with Sellers or the Acquired Company by any such employee or director.

     (c) Schedule 3.20(a) also contains a complete and accurate list of the
following information for each retired employee or director of the Acquired
Company, or their dependents, receiving benefits or scheduled to receive
benefits in the future:  name, pension benefit, pension option election, retiree
medical insurance coverage, retiree life insurance coverage, and other benefits.

                                       33
<PAGE>
 
     (d) Except as set forth in Schedule 3.20(a), neither the Acquired Company,
nor any Person acting directly or indirectly on behalf of the Acquired Company,
has  any written employment agreements with any Person, or any written
compensation plan (excluding those set forth in the Schedule provided under
Section 3.20(a) above.

     (e) Except as set forth in Schedule 3.20(e) or as set forth in the
Contemplated Transactions, to Sellers' Knowledge, no director, officer, or other
key employee of the Acquired Company intends to terminate his employment with
the Acquired Company.

     (f) Except as set forth in Schedule 3.20(f), the Acquired Company has not
incurred and shall not incur any termination, severance, or similar payment as a
result of the Contemplated Transactions.

     3.21 LABOR DISPUTES; COMPLIANCE.  The Acquired Company is not and has not
been a party to any collective bargaining or other labor Contract.  There has
not been, there is not presently pending or existing, and there is not
Threatened any strike, slowdown, picketing, work stoppage, labor arbitration or
proceeding in respect of the grievance of any employee, application or complaint
filed by an employee or union with the National Labor Relations Board, Equal
Employment Opportunity Commission, or any comparable Governmental Body,
organizational activity, or other labor dispute against or affecting the
Acquired Company or its premises, and no application for certification of a
collective bargaining agent is pending or is Threatened.  No event has occurred
or circumstance exists that could provide the basis for any work stoppage or
other labor dispute.  There is no lockout of any employees by the Acquired
Company, and no such action is contemplated by the Acquired Company.  The
Acquired Company has complied in all respects with all Legal Requirements
relating to employment, equal employment opportunity, nondiscrimination,
immigration, wages, hours, benefits, collective bargaining, the payment of
social security and similar taxes, occupational safety and health, and plant
closing.  The Acquired Company is not liable for the payment of any taxes,
fines, penalties, or other amounts, however designated, for failure to comply
with any of the foregoing Legal Requirements.

     3.22 INTELLECTUAL PROPERTY.

     (a) Intellectual Property Assets.  The term "Intellectual Property Assets"
includes the following of the Acquired Company:

          (i) all fictional business names, trading names, registered and
     unregistered trademarks, service marks, and applications (collectively,
     "Marks");

          (ii) all patents, patent applications, and inventions and discoveries
     that be patentable (collectively, "Patents");

          (iii)  all copyrights in both published works and unpublished works
     that are material to the Acquired Company's businesses (collectively,
     "Copyrights");

          (iv) all rights in mask works (collectively, "Rights in Mask Works");
     and

                                       34
<PAGE>
 
     (v) all know-how, trade secrets, confidential information, customer lists,
     software, technical information, data, process technology, plans, drawings,
     and blue prints (collectively, "Trade Secrets");

owned, used, or licensed by the Acquired Company as licensee or licensor.

     (b) Agreements.   Schedule 3.22(b) contains a complete and accurate list
and summary description, including any royalties paid or received by the
Acquired Company, of all agreements relating to the Intellectual Property Assets
to which the Acquired Company is a party or by which the Acquired Company is
bound except for any license implied by the sale of a product and perpetual,
paid-up licenses for mass market software programs under which the Acquired
Company is a licensee.  There are no outstanding and, to Sellers' Knowledge, no
Threatened disputes or disagreements with respect to any such agreement.

     (c) Know-How Necessary for the Business.

          (i) The Intellectual Property Assets are all those necessary for the
     operation of the Acquired Company's businesses as they are currently
     conducted.  The Acquired Company is the owner of all right, title, and
     interest in and to each of the Intellectual Property Assets, free and clear
     of all liens, security interests, charges, encumbrances, equities, and
     other adverse claims, and has the right to use without payment to a third
     party all of the Intellectual Property Assets.

          (ii) Except as set forth in Schedule 3.22(c)(ii) all former and
     current employees of the Acquired Company have executed written Contracts
     with the Acquired Company that assign to the Acquired Company all rights to
     any inventions, improvements, discoveries, or information relating to the
     business of the Acquired Company. No employee of the Acquired Company has
     entered into any Contract that restricts or limits in any way the scope or
     type of work in which the employee may be engaged or requires the employee
     to transfer, assign, or disclose information concerning his work to anyone
     other than the Acquired Company.

     (d)  Patents.

          (i) Schedule 3.22(d) contains a complete and accurate list and summary
     description of any Patents owned by Sellers or the Acquired Company and
     used in the business of the Acquired Company.  The Acquired Company is the
     owner of all right, title, and interest in and to each of the Patents, free
     and clear of all liens, security interests, charges, encumbrances,
     entities, and other adverse claims.

          (ii) All of the issued Patents are currently in compliance with formal
     legal requirements (including payment of filing, examination, and
     maintenance fees and proofs of working or use), are valid and enforceable,
     and are not subject to any maintenance fees or taxes or actions falling due
     within ninety days after the Closing Date.

                                       35
<PAGE>
 
          (iii)  No Patent has been or is now involved in any interference,
     reissue, reexamination, or opposition proceeding. To Sellers' Knowledge,
     there is no potentially interfering patent or patent application of any
     third party.

          (iv) No Patent is infringed or, to Sellers' Knowledge, has been
     challenged or threatened in any way. None of the products manufactured and
     sold, nor any process or know-how used, by the Acquired Company infringes
     or is alleged to infringe any patent or other proprietary right of any
     other Person.

          (v) All products made, used, or sold under the Patents have been
     marked with the proper patent notice.

     (e)  Trademarks

          (i) Schedule 3.22(e) contains a complete and accurate list and summary
     description of all Marks owned or licensed to the Acquired Company.  The
     Acquired Company is the owner of all right, title, and interest in and to
     each of the Marks owned or licensed to the Acquired Company, free and clear
     of all liens, security interests, charges, encumbrances, equities, and
     other adverse claims.

          (ii) All Marks owned or licensed to the Acquired Company have been
     registered with the United States Patent and Trademark Office and are
     currently in compliance with all formal legal requirements (including the
     timely post-registration filing of affidavits of use and incontestability
     and renewal applications), are valid and enforceable, and are not subject
     to any maintenance fees or taxes or actions falling due within ninety days
     after the Closing Date.

          (iii)  No Mark owned or licensed to the Acquired Company has been or
     is now involved in any opposition, invalidation, or cancellation and, to
     Sellers' Knowledge, no such action is Threatened with the respect to any of
     the Marks.

          (iv) To Sellers' Knowledge, there is no potentially interfering
     trademark or trademark application of any third party.

          (v) No Mark owned or licensed to the Acquired Company is infringed or,
     to Sellers' Knowledge, has been challenged or threatened in any way.  None
     of the Marks used by the Acquired Company infringes or is alleged to
     infringe any trade name, trademark, or service mark of any third party.

     (f)  Copyrights

          (i) Schedule 3.22(f) contains a complete and accurate list and summary
     description of all copyrights owned or licensed to the Acquired Company.
     The Acquired Company is the owner of all right, title, and interest in and
     to each of the Copyrights owned or licensed to the Acquired Company, free
     and clear of all liens, security interests, charges, encumbrances,
     equities, and other adverse claims.

                                       36
<PAGE>
 
          (ii) All the Copyrights owned or licensed to the Acquired Company have
     been registered and are currently in compliance with formal legal
     requirements, are valid and enforceable, and are not subject to any
     maintenance fees or taxes or actions falling due within ninety days after
     the date of Closing.

          (iii)  No Copyright owned or licensed to the Acquired Company is
     infringed or, to Sellers' Knowledge, has been challenged or threatened in
     any way.  None of the subject matter of any of the Copyrights owned or
     licensed to the Acquired Company infringes or is alleged to infringe any
     copyright of any third party.

     (g)  Trade Secrets

          (i) With respect to each Trade Secret, the documentation relating to
     such Trade Secret is current, accurate, and sufficient in detail and
     content to identify and explain it and to allow its full and proper use
     without reliance on the special knowledge or memory of others.

          (ii) Sellers and the Acquired Company have taken all reasonable
     precautions to protect the secrecy, confidentiality, and value of their
     Trade Secrets.

          (iii)  The Acquired Company has good title and an absolute (but not
     necessarily exclusive) right to use the Trade Secrets.  The Trade Secrets
     are not part of the public knowledge or literature, and, to Sellers'
     Knowledge, have not been used, divulged, or appropriated either for the
     benefit of any Person (other than the Acquired Company) or to the detriment
     of the Acquired Company.  No Trade Secret is subject to any adverse claim
     or has been challenged or threatened in any way.

     3.23 CERTAIN PAYMENTS.  Neither the Acquired Company, Seller or director,
officer, agent, nor employee of the Acquired Company or Seller, nor any other
Person associated with or acting for or on behalf of the Acquired Company, has
directly or indirectly (a) made any contribution, gift, bribe, rebate, payoff,
influence payment, kickback, or other payment to any Person, private or public,
regardless of form, whether in money, property, or services (i) to obtain
favorable treatment in securing business, (ii) to pay for favorable treatment
for business secured, (iii) to obtain special concessions or for special
concessions already obtained, for or in respect of the Acquired Company or any
Affiliate of the Acquired Company, or (iv) in violation of any Legal
Requirement, or (b) established or maintained any fund or asset that has not
been recorded in the books and records of the Acquired Company.

                                       37
<PAGE>
 
     3.24 DISCLOSURE.

     (a) No representation or warranty of Sellers in this Agreement and no
statement in the schedules and exhibits omits to state a material fact necessary
to make the statements herein or therein, in light of the circumstances in which
they were made, not misleading.

     (b) No notice given pursuant to Section 5.5 will contain any untrue
statement or omit to state a material fact necessary to make the statements
therein or in this Agreement, in light of the circumstances in which they were
made, not misleading.

     (c) There is no fact known to any Seller that has specific application to
any Seller or the Acquired Company (other than general economic or industry
conditions) and that materially adversely affects or, as far as any Seller can
reasonably foresee, materially threatens, the assets, business, prospects,
financial condition, or results of operations of the Acquired Company (on a
consolidated basis) that has not been set forth in this Agreement or its
Exhibits and Schedules.

     3.25 RELATIONSHIPS WITH RELATED PERSONS.  Except as set forth in Schedule
3.25, no Seller or any Related Person of Sellers or of the Acquired Company has,
or has had, any interest in any property (whether real, personal, or mixed and
whether tangible or intangible), used in or pertaining to the Acquired Company's
business.  No Seller or any Related Person of Sellers or of the Acquired Company
owns, or has owned, of record or as a beneficial owner, an equity interest or
any other financial or profit interest in any Person that has (i) had business
dealings or a material financial interest in any transaction with the Acquired
Company other than business dealings or transactions conducted in the Ordinary
Course of Business with the Acquired Company at substantially prevailing market
prices and on substantially prevailing market terms, or (ii) engaged in
competition with the Acquired Company with respect to any line of the products
or services of the Acquired Company (a "Competing Business") in any market
presently served by the Acquired Company.  Except as set forth in Schedule 3.25,
no Seller or any Related Person of Sellers or of the Acquired Company is a party
to any Contract with, or has any claim or right against, the Acquired Company.

     3.26 INVESTMENT REPRESENTATIONS.

     (a) Sellers are acquiring the IOI Securities to be issued to Sellers as
purchase price consideration, in accordance with this Agreement, for their own
account for investment and not with a view toward, or for sale in connection
with, any distribution thereof, and have no present or contemplated agreement,
undertaking, arrangement, indebtedness or commitment providing for the
disposition thereof, except in accordance with a distribution thereof registered
under the Securities Act.

     (b) Sellers understand that because the IOI Securities to be issued have
not been registered under the Securities Act, Sellers cannot dispose of any or
all of such IOI Securities unless such IOI Securities are subsequently
registered under the Securities Act or exemptions from such registration are
available.  Sellers further understand that IOI may, as a condition to the
transfer of any of such IOI Securities, require that the request for transfer be
accompanied by an opinion of counsel, in form and substance satisfactory to IOI,
to the effect that the

                                       38
<PAGE>
 
proposed transfer does not result in a violation of the Securities Act, unless
such transfer is covered by an effective registration statement under the
Securities Act.  Sellers acknowledge and understand that the certificates for
the IOI Securities will bear a legend substantially to such effect.  Sellers
acknowledge and understand that Sellers have no independent right to require IOI
to register the IOI Securities.

     (c) Each Seller either alone or together with their representatives is
knowledgeable and experienced in business and financial matters and capable of
evaluating the merits and risks of the investment in such IOI Securities, is
able to bear the economic risk of loss of its investment in IOI, has been
granted the opportunity to make a thorough investigation of the affairs of IOI,
and has availed himself of such opportunity either directly or through
authorized representatives.

     (d) Each Seller has been advised that such IOI Securities have not been and
are not being registered under the Securities Act or under the "blue sky" laws
of any jurisdiction and that IOI in issuing such IOI Securities is relying upon,
among other things, the representations and warranties of Sellers contained in
this Section 3.26 in concluding that each such issuance is a "private offering"
and does not require compliance with the registration provisions of the
Securities Act.

     (e)  Each Seller is an individual.

     (f) Each Seller has read the Private Placement Memorandum attached as
Exhibit 3.26(f)(i) and the IOI securities filings attached as Exhibit
3.26(f)(ii) (the "IOI Securities Filings") and has had an opportunity to ask
questions of and receive answers from IOI or a person or persons acting on IOI's
behalf, concerning the IOI Securities (consideration, etc.) investment, and all
such questions have been answered to each Seller's full satisfaction.  Each
Seller has had an opportunity to obtain all additional information necessary to
verify the accuracy of the foregoing.  No Seller has received representations or
warranties (other than any contained in this Agreement) from IOI or any of its
affiliates, employees or agents, and, in making their investment decision, each
Seller is relying solely on the information contained in the Private Placement
Memorandum and the IOI Securities Filings and investigations made by Sellers.

     (g) Each Seller has been delivered the statement required by Section 207(m)
of the Pennsylvania Securities Act (Exhibit 3.26(g)).

     3.27 BROKERS OR FINDERS.   Sellers and their agents have incurred no
obligation or liability, contingent or otherwise, for brokerage or finders' fees
or agents' commissions or other similar payment in connection with this
Agreement.

     4.   REPRESENTATIONS AND WARRANTIES OF BUYER

          Buyer represents to Sellers as follows:

     4.1  ORGANIZATION AND GOOD STANDING.  Buyer is a business corporation duly
organized, validly existing, and in good standing under the laws of the State of
Texas.

                                       39
<PAGE>
 
     4.2  AUTHORITY; NO CONFLICT.

     (a) This Agreement constitutes the legal, valid, and binding obligation of
Buyer, enforceable against Buyer in accordance with its terms.  Upon the
execution and delivery by Buyer of this Agreement (together with any other
required agreements to be signed and delivered at Closing, the "Buyer's Closing
Documents"), the Buyer's Closing Documents will constitute the legal, valid, and
binding obligations of Buyer, enforceable against Buyer in accordance with their
respective terms.  Buyer has the absolute and unrestricted right, power, and
authority to execute and deliver this Agreement and the Buyer's Closing
Documents and to perform their obligations under this Agreement and the Buyer's
Closing Documents.

     (b) Except as set forth in Schedule 4.2 (b), neither the execution and
delivery of this Agreement by Buyer nor the consummation or performance of any
of the Contemplated Transactions by Buyer will give any Person the right to
prevent, delay, or otherwise interfere with any of the Contemplated Transactions
pursuant to:

          (i) any provisions of Buyer's Organizational Documents;

          (ii) any resolution adopted by the board of directors or the
     stockholders of Buyer;

          (iii)  any Legal Requirement or Order to which Buyer may be subject;
     or

          (iv) any Contract to which Buyer is a party or by which Buyer may be
     bound.

Except as set forth in Schedule 4.2, Buyer is not and will not be required to
obtain any Consent from any Person in connection with the execution and delivery
of this Agreement or the consummation or performance of any of the Contemplated
Transactions.

     4.3  INVESTMENT INTENT.  Buyer is acquiring the Acquired Company's stock
for its own account and not with a view to its distribution within the meaning
of Section 2(11) of the Securities Act.

     4.4  CERTAIN PROCEEDINGS.  There is no pending Proceeding that has been
commenced against Buyer and that challenges, or may have the effect of
preventing, delaying, making illegal, or otherwise interfering with, any of the
Contemplated Transactions.  To Buyer's Knowledge, no such Proceeding has been
Threatened.

     4.5  BROKERS OR FINDERS.  Buyer and its officers and agents have incurred
no obligation or liability, contingent or otherwise, for brokerage or finders'
fees or agents' commissions or other similar payment in connection with this
Agreement and will indemnify and hold Sellers harmless from any such payment
alleged to be due by or through Buyer as a result of the action of Buyer or its
officers or agents.

                                       40
<PAGE>
 
     4.6  CAPITAL STOCK.  The Company's authorized and issued capital stock is
as described in the Private Placement Memorandum attached as Exhibit 3.26(f)(i).
The IOI Securities, have been duly authorized and validly issued.

     4.7  SEC FILINGS; FINANCIAL INFORMATION.

     (a) Buyer has filed with the SEC and made available to the Sellers the IOI
Securities Filings.  The IOI Securities Filings (i) were prepared in all
material respects in accordance with the requirements of the Securities Act and
(ii) did not at the time of filing (or if amended or superseded by a filing
prior to the date of this Agreement, then on the date of such filing) contain
any untrue statement of a material fact or omit to state a material fact
required to be stated therein or necessary in order to make the statements
therein, in the light of the circumstances under which they were made, not
misleading.

     (b) Each of the consolidated financial statements (including, in each case,
any related notes thereto) contained in the IOI Securities Filings was prepared
in accordance with generally accepted accounting principles applied on a
consistent basis throughout the periods involved (except as may be indicated in
the notes thereto), and each fairly presents in all material respects the
consolidated financial position of the Buyer and its consolidated subsidiaries
as at the respective dates thereof and the consolidated statements of income and
case flows for the periods indicated.

     4.8  NO MATERIAL ADVERSE CHANGE.  Except as disclosed in Schedule 4.8,
since the date of the last audited financial statement contained in the IOI
Securities Filings there has not been any material adverse change in the
business, operations, properties, prospects, assets, or condition of the Buyer,
and no event has occurred or circumstance exists that may result in such a
material adverse change.

     4.9  DISCLOSURE.

     (a) No representation or warranty of Buyer in this Agreement and no
statement in the schedules and exhibits omits to state a material fact necessary
to make the statements herein or therein, in light of the circumstances in which
they were made, not misleading.

     (b) No notice given pursuant to Section 6.3 will contain any untrue
statement or omit to state a material fact necessary to make the statements
therein or in this Agreement, in light of the circumstances in which they were
made, not misleading.

     (c) There is no fact known to Buyer that has specific application to the
Buyer (other than general economic or industry conditions) and that materially
adversely affects or, as far as any Buyer can reasonably foresee, materially
threatens, the assets, business, prospects, financial condition, or results of
operations of Buyer (on a consolidated basis) that has not been set forth in
this Agreement or its Exhibits and Schedules.

                                       41
<PAGE>
 
     5.   COVENANTS OF SELLERS PRIOR TO CLOSING DATE

     5.1  ACCESS AND INVESTIGATION.  Between the date of this Agreement and the
Closing Date, Sellers will, and will cause the Acquired Company and its
Representatives to, (a) afford Buyer and its Representatives (collectively,
"Buyer's Advisors") full and free access to each Acquired Company's personnel,
properties (including subsurface testing), contracts, books and records, and
other documents and data, (b) furnish Buyer and Buyer's Advisors with copies of
all such contracts, books and records, and other existing documents and data as
Buyer may reasonably request, and (c) furnish Buyer and Buyer's Advisors with
such additional financial, operating, and other data and information as Buyer
may reasonably request.

     5.2  OPERATION OF THE BUSINESS OF THE ACQUIRED COMPANY.  Other than as set
forth in the Contemplated Transactions, between the date of this Agreement and
the Closing Date, Sellers will, and will cause the Acquired Company to:

     (a) conduct the business of the Acquired Company only in the Ordinary
Course of Business (except as set forth in the Contemplated Transactions);

     (b) use their Best Efforts to preserve intact the current business
organization of the Acquired Company, keep available the services of the current
officers, employees, and agents of the Acquired Company, and maintain the
relations and good will with suppliers, customers, landlords, creditors,
employees, agents, and others having business relationships with the Acquired
Company;

     (c) confer with Buyer concerning operational matters of a material nature;
and

     (d) otherwise report periodically to Buyer concerning the status of the
business, operations, and finances of the Acquired Company.

     5.3  NEGATIVE COVENANT.  Except as otherwise expressly permitted by this
Agreement, between the date of this Agreement and the Closing Date, Sellers will
not, and will cause the Acquired Company not to, without the prior consent of
Buyer, take any affirmative action, or fail to take any reasonable action within
their or its control, as a result of which any of the changes or events listed
in Section 3.16 is likely to occur.

     5.4  REQUIRED APPROVALS.  As promptly as practicable after the date of this
Agreement, Sellers will, and will cause the Acquired Company to, make all
filings required by Legal Requirements to be made by them in order to consummate
the Contemplated Transactions (including all filings under the HSR Act). Between
the date of this Agreement and the Closing Date, Sellers will, and will cause
the Acquired Company to, (a) cooperate with Buyer with respect to all filings
that Buyer elects to make or is required by Legal Requirements to make in
connection with the Contemplated Transactions, and (b) cooperate with Buyer in
obtaining all consents identified in Schedule 4.2 (including taking all actions
requested by Buyer to cause early termination of any applicable waiting period
under the HSR Act).

                                       42
<PAGE>
 
     5.5  NOTIFICATION.  Between the date of this Agreement and the Closing
Date, each Seller will promptly notify Buyer in writing if such Sellers or the
Acquired Company becomes aware of any fact or condition that causes or
constitutes a Breach of any of Sellers' representations and warranties as of the
date of this Agreement, or if such Seller or the Acquired Company becomes aware
of the occurrence after the date of this Agreement of any fact or condition that
would (except as expressly contemplated by this Agreement) cause or constitute a
Breach of any such representation or warranty had such representation or
warranty been made as of the time of occurrence or discovery of such fact or
condition.  Should any such fact or condition require any change in any schedule
or exhibit if the schedule or exhibit were dated the date of the occurrence or
discovery of any such fact or condition, Sellers will promptly deliver to Buyer
a supplement to the Schedule specifying such change.  During the same period,
each Seller will promptly notify Buyer of the occurrence of any Breach of any
covenant of Sellers in this Section 5 or of the occurrence of any event that may
make the satisfaction of the conditions in Section 7 impossible or unlikely.

     5.6  PAYMENT OF INDEBTEDNESS BY RELATED PERSONS.  Except as expressly
provided in Exhibit 5.6 hereto, Sellers will cause all indebtedness of any
Related Person to the Acquired Company to be paid in full prior to Closing.

     5.7  NO NEGOTIATION.  Until such time, if any, as this Agreement is
terminated pursuant to Section 9, Sellers will not, and will cause the Acquired
Company and each of its Representatives not to, directly or indirectly solicit,
initiate, or encourage any inquiries or proposals from, discuss or negotiate
with, provide any non-public information to, or consider the merits of any
unsolicited inquiries or proposals from, any Person (other than Buyer) relating
to any transaction involving the (1) sale of the business or assets (other than
in the Ordinary Course of Business or as set forth in the Contemplated
Transactions) of the Acquired Company; (2) sale of any of the capital stock or
interest of the Acquired Company other than as set forth in the Contemplated
Transactions; (3) any merger, consolidation, business combination, or similar
transaction involving the Acquired Company, the management of all or part of the
Acquired Company, Medical Practice, or Sellers; or (4) any business arrangement
similar to any part of the Contemplated Transactions.

     5.8  ACQUISITION AUDIT.  Sellers shall obtain an acquisition audit prior to
Closing  consisting of the Financial Statements and Interim Financial Statements
of the Acquired Company as described in Section 3.4 audited by certified public
accountants of a firm that is admitted to practice before the Securities and
Exchange Commission.  The Financial Statements and Interim Financial Statements
shall be sufficient to support IOI's 8K financial disclosure requirements.  The
costs and expenses of this  acquisition audit shall be borne entirely by Sellers
unless the Contemplated Transactions are all consummated, in which case the
costs and expenses shall be borne entirely by the Buyer.

     5.9  TERMINATION OF EMPLOYEE PLANS.  Sellers shall cause the Acquired
Company to terminate all Company Plans, Company Other Benefit Obligations,
Pension Plan, Plan, Qualified Plan, Title IV Plans, and Welfare Plans, or to
transfer all liabilities and obligations to the Medical Practice of such plans
and obligations, on or before the Closing Date.  Sellers shall bear

                                       43
<PAGE>
 
all costs associated with such terminations and shall undertake all filings
required with such actions.

     5.10 BEST EFFORTS.  Between the date of this Agreement and the Closing
Date, Sellers will use their Best Efforts to cause the conditions in Sections 7
and 8 to be satisfied.

     6.   COVENANTS OF BUYER PRIOR TO CLOSING DATE

     6.1  APPROVALS OF GOVERNMENTAL BODIES.  As promptly as practicable after
the date of this Agreement, Buyer will, and will cause each of its Related
Persons to, make all filings required by Legal Requirements to be made by them
to consummate the Contemplated Transactions (including all filings under the HSR
Act).  Between the date of this Agreement and the Closing Date, Buyer will, and
will cause each Related Person to, cooperate with Sellers with respect to all
filings that Sellers are  required by Legal Requirements to make in connection
with the Contemplated Transactions, and (ii) cooperate with Sellers in obtaining
all consents identified in Schedule 3.2; provided that this Agreement will not
require Buyer to dispose of or make any change in any portion of their
businesses or to incur any other burden to obtain a Governmental Authorization.

     6.2  BEST EFFORTS.  Except as set forth in the proviso to Section 6.1,
between the date of this Agreement and the Closing Date, Buyer will use its Best
Efforts to cause the conditions in Sections 7 and 8 to be satisfied.

     6.3  NOTIFICATION.  Between the date of this Agreement and the Closing
Date, Buyer will promptly notify each Seller in writing if Buyer becomes aware
of any fact or condition that causes or constitutes a Breach of any of Buyers'
representations and warranties as of the date of this Agreement, or if Buyer
becomes aware of the occurrence after the date of this Agreement of any fact or
condition that would (except as expressly contemplated by this Agreement) cause
or constitute a Breach of any such representation or warranty had such
representation or warranty been made as of the time of occurrence or discovery
of such fact or condition.  Should any such fact or condition require any change
in any schedule or exhibit if the schedule or exhibit were dated the date of the
occurrence or discovery of any such fact or condition, Buyer will promptly
deliver to Sellers a supplement to the Schedule specifying such change.  During
the same period, Buyer will promptly notify Sellers of the occurrence of any
Breach of any covenant of Buyer in this Section 6 or of the occurrence of any
event that may make the satisfaction of the conditions in Section 8 impossible
or unlikely.

     6.4  ACCESS AND INVESTIGATION.  Between the date of this Agreement and the
Closing Date, Buyer will, and will cause its Representatives to, (a) afford
Seller and its Representatives (collectively, "Seller's Advisors") full and free
access to IOI Securities Filings and (b) furnish Sellers and Seller's Advisors
with copies of all such IOI Securities Filings as Sellers may reasonably
request.

                                       44
<PAGE>
 
     7.   CONDITIONS PRECEDENT TO BUYER'S OBLIGATION TO CLOSE

     Buyer's obligation to purchase the Shares and to take the other actions
required to be taken by Buyer at the Closing is subject to the satisfaction, at
or prior to the Closing, of each of the following conditions (any of which may
be waived by Buyer, in whole or in part):

     7.1  ACCURACY OF REPRESENTATIONS.

     (a) All of Sellers' representations and warranties in this Agreement
(considered collectively), and each of these representations and warranties
(considered individually), must have been accurate in all material respects as
of the date of this Agreement, and must be accurate in all material respects as
of the Closing Date as if made on the Closing Date, without giving effect to any
supplement to the Schedule.

     (b) Each of Sellers' representations and warranties in Sections 3.3, 3.4,
3.12, and 3.24 must have been accurate in all respects as of the date of this
Agreement, and must be accurate in all respects as of the Closing Date as if
made on the Closing Date, without giving effect to any supplement to the
Schedule.

     7.2  SELLER'S PERFORMANCE.

     (a) All of the covenants and obligations that Sellers are required to
perform or to comply with pursuant to this Agreement at or prior to the Closing
(considered collectively), and each of these covenants and obligations
(considered individually), must have been duly performed and complied with in
all material respects.

     (b) Each Seller  must have delivered each of the documents required to be
delivered by such Seller pursuant to Section 2.3(a), and each of the other
covenants and obligations in Sections 5.4 and 5.8 must have been performed and
complied with in all respects.

     7.3  CONSENTS.  Each of the Consents identified in Schedule 3.2, and each
of the Consents identified in Schedule 4.2, must have been obtained and must be
in full force and effect.

     7.4  ADDITIONAL DOCUMENTS.  Sellers must have caused the following
documents to be delivered to Buyer:

     (a) an opinion of Sellers' counsel, dated the Closing Date, in the form of
Exhibit 7.4(a);

     (b) assignment of the office lease for Granite Run Corporate Center,
executed by the Acquired Company and Existing Practice;

     (c) landlord's consent and estoppel certificate executed on behalf of
Granite Properties,  dated as of a date not more than _____ days prior to the
Closing Date; each in the form of Exhibit 7.4(c);

                                       45
<PAGE>
 
     (d) assignment of the office sublease for Health South Holdings, Inc.,
executed by the Acquired Company and Existing Practice;

     (e) sublessee's consent and estoppel certificate executed on behalf of
Lancaster Orthopedic Group, Inc., dated as of a date not more than ___ days 
prior to the Closing Date, each in the form of Exhibit 7.4(e);

     (f) assignment of the office lease for Medical Office Building, Lancaster
General Hospital, from the Acquired Company to the Medical Practice;

     (g) assignment of the office sharing agreement for Ephrata Medical Office
Building, executed by the Acquired Company and Existing Practice;

     (h) landlord's consent and estoppel certificate executed on behalf of
Charles Evans dated as of a date not more than ______ days prior to the Closing
Date, each in the form of Exhibit 7.4(i);

     (i) assignment of the office lease for Willow Valley executed by the
Acquired Company and Existing Practice.

     (j) such other documents as Buyer may reasonably request for the purpose of
(i) enabling its counsel to provide the opinion referred to in Section 8.4(a),
(ii) evidencing the accuracy of any of Sellers' representations and warranties,
(iii) evidencing the performance by Sellers of, or the compliance by Sellers
with, any covenant or obligation required to be performed or complied with by
such Seller, (iv) evidencing the satisfaction of any condition referred to in
this Section 7, or (v) otherwise facilitating the consummation or performance of
any of the Contemplated Transactions.

     7.5  NO PROCEEDINGS.  Since the date of this Agreement, there must not have
been commenced or Threatened against Buyer, or against any Person affiliated
with Buyer, any Proceeding (a) involving any challenge to, or seeking damages or
other relief in connection with, any of the Contemplated Transactions, or (b)
that may have the effect of preventing, delaying, making illegal, or otherwise
interfering with any of the Contemplated Transactions.

     7.6  NO CLAIM REGARDING STOCK OWNERSHIP OR SALE PROCEEDS.  There must not
have been made or Threatened by any Person any claim asserting that such Person
(a) is the holder or the beneficial owner of, or has the right to acquire or to
obtain beneficial ownership of, any stock of, or any other voting, equity, or
ownership interest in, the Acquired Company, or (b) is entitled to all or any
portion of the Purchase Price payable for the Shares.

                                       46
<PAGE>
 
     7.7  NO PROHIBITION.  Neither the consummation nor the performance of any
of the Contemplated Transactions will, directly or indirectly (with or without
notice or lapse of time), materially contravene, or conflict with, or result in
a material violation of, or cause Buyer or any Person affiliated with Buyer to
suffer any material adverse consequence under, (a) any applicable Legal
Requirement or Order, or (b) any Legal Requirement or Order that has been
published, introduced, or otherwise proposed by or before any Governmental Body.

     8.   CONDITIONS PRECEDENT TO SELLERS' OBLIGATION TO CLOSE

     Sellers' obligation to sell the Shares and to take the other actions
required to be taken by Sellers at the Closing is subject to the satisfaction,
at or prior to the Closing, of each of the following conditions (any of which
may be waived by Sellers, in whole or in part):

     8.1  ACCURACY OF REPRESENTATIONS.

     (a) All of Buyer's representations and warranties in this Agreement
(considered collectively), and each of these representations and warranties
(considered individually), must have been accurate in all material respects as
of the date of this Agreement and must be accurate in all material respects as
of the Closing Date as if made on the Closing Date.

     (b) Each of Sellers' representations and warranties in Sections 4.7, 4.8
and 4.9 must have been accurate in all respects as of the date of this
Agreement, and must be accurate in all respects as of the Closing Date as if
made on the Closing Date, without giving effect to any supplement to the
Schedule.

     8.2  BUYER'S PERFORMANCE.

     (a) All of the covenants and obligations that Buyer is required to perform
or to comply with pursuant to this Agreement at or prior to the Closing
(considered collectively), and each of these covenants and obligations
(considered individually), must have been performed and complied with in all
material respects.

     (b) Buyer must have delivered each of the documents required to be
delivered by Buyer pursuant to Section 2.3 and must have delivered the
Acquisition Price required to be made by Buyer pursuant to Sections 2.1.

     8.3  CONSENTS.  Each of the Consents identified in Schedule 3.2 must have
been obtained and must be in full force and effect.

     8.4  ADDITIONAL DOCUMENTS.  Buyer must have caused the following documents
to be delivered to Sellers:

     (a) an opinion of Buyer's counsel, dated the Closing Date, in the form of
Exhibit 8.4(a); and

                                       47
<PAGE>
 
     (b) such other documents as Sellers may reasonably request for the purpose
of (i) enabling their counsel to provide the opinion referred to in Section
7.4(a), (ii) evidencing the accuracy of any representation or warranty of Buyer,
(iii) evidencing the performance by Buyer of, or the compliance by Buyer with,
any covenant or obligation required to be performed or complied with by Buyer,
(iv) evidencing the satisfaction of any condition referred to in this Section 8,
or (v) otherwise facilitating the consummation of any of the Contemplated
Transactions.

     8.5  NO INJUNCTION.  There must not be in effect any Legal Requirement or
any injunction or other Order that (a) prohibits the sale of the Shares by
Sellers, and (b) has been adopted or issued, or has otherwise become effective,
since the date of this Agreement.

     9.   TERMINATION

     9.1  TERMINATION EVENTS.  This Agreement may, by notice given prior to or
at the Closing, be terminated:

     (a) by either Buyer or Sellers if a material Breach of any provision of
this Agreement has been committed by the other party and such Breach has not
been waived;

     (b)  (i)  by Buyer if any of the conditions in Section 7 has not been
     satisfied as of the Closing Date or if satisfaction of such a condition is
     or becomes impossible (other than through the failure of Buyer to comply
     with its obligations under this Agreement) and Buyer has not waived such
     condition on or before the Closing Date; or

          (ii) by Sellers, if any of the conditions in Section 8 have not been
     satisfied of the Closing Date or if satisfaction of such a condition is or
     becomes impossible (other than through the failure of Sellers to comply
     with their obligations under this Agreement) and Sellers have not waived
     such condition on or before the Closing Date;

     (c) by mutual consent of Buyer and Sellers; or

     (d) by either Buyer or Sellers if the Closing has not occurred (other than
through the failure of any party seeking to terminate this Agreement to comply
fully with its obligations under this Agreement) on or before December 31, 1997
or such later date as the parties may agree upon.

     9.2  EFFECT OF TERMINATION.  Each party's right of termination under
Section 9.1 is in addition to any other rights it may have under this Agreement
or otherwise, and the exercise of a right of termination will not be an election
of remedies.  If this Agreement is terminated pursuant to Section 9.1, all
further obligations of the parties under this Agreement will terminate, except
that the obligations in Sections 11.2, 11.3 and 11.17 will survive; provided,
however, that if this Agreement is terminated by a party because of the Breach
of the Agreement by the other party or because one or more of the conditions to
the terminating party's obligations under this Agreement is not satisfied as a
result of the other party's failure to comply with its

                                       48
<PAGE>
 
obligations under this Agreement, the terminating party's right to pursue all
legal remedies will survive such termination unimpaired.

     10.  INDEMNIFICATION; REMEDIES

     10.1 SURVIVAL.  All representations, warranties, covenants, and obligations
in this Agreement, the schedules and exhibits, the supplements to the schedules
and exhibits, the certificate delivered pursuant to Section 7.4(b), and any
other certificate or document delivered pursuant to this Agreement will survive
the Closing; the right to indemnification, reimbursement, or other remedy based
on such representations, warranties, covenants, and obligations will not be
affected by any investigation conducted with respect to, or any actual knowledge
acquired (or capable of being acquired) at any time, whether before or after the
execution and delivery of the Agreement or the Closing Date, about the accuracy
or inaccuracy of or compliance with, any such representation, warranty,
covenant, or obligation.  The waiver of any condition based on the accuracy of
any representation or warranty, or on the performance of or compliance with any
covenant or obligation, will not affect the right to indemnification,
reimbursement, or other remedy based on such representations, warranties,
covenants, and obligations.

     10.2 INDEMNIFICATION AND REIMBURSEMENT BY SELLERS.  Sellers, jointly and
severally,  in solidarity (other than with respect to Sections 3.3 and 3.26
relating to each individual Seller's shares of the Acquired Company, which shall
be made on a several, but not joint basis), will indemnify and hold harmless
Buyer, the Acquired Company, and its respective Representatives, stockholders,
controlling persons, and affiliates (collectively, the "Indemnified Persons"),
and will reimburse the Indemnified Persons, for any loss, liability, claim,
damage, (including incidental and consequential damages), expense (including
costs of investigation and defense and reasonable attorneys' fees) or diminution
of value, whether or not involving a third-party claim (collectively,
"Damages"), arising from or in connection with:

     (a) any Breach of any representation or warranty made by Sellers in this
Agreement (without giving effect to any supplement to the schedules or
exhibits), the schedules and exhibits, the supplements to the Schedule, the
certificate delivered pursuant to Section 2.3(a)(xi) (for this purpose, that
certificate will be deemed to have stated that Sellers' representations and
warranties in this Agreement are accurate as of the Closing Date as if made on
the Closing Date without giving effect to any supplement to the schedules and
exhibits, unless the certificate expressly stated that the matters disclosed in
a supplement have caused the condition specified in Section 7.1 not to be
satisfied), or any other certificate or document delivered by Sellers pursuant
to this Agreement;

     (b) any Breach by any Seller of any covenant or obligation of such Seller
in this Agreement;

     (c) any product sold by or any services provided by the Acquired Company,
including the Existing Practice, on or before the Closing Date;

     (d) any claim by any Person for brokerage or finder's fees or commissions
or similar payments based upon any agreement or understanding alleged to have
been made by any such

                                       49
<PAGE>
 
Person with any Seller or the Acquired Company (or any Person acting on their
behalf) in connection with any of the Contemplated Transactions; or

     (e) all obligations and liabilities known or unknown, contingent or
otherwise, relating in any way to the operation of the Existing Practice on or
before the Closing Date except for those liabilities expressly assumed by Buyer
under Section 2.1(d).

     The remedies provided in this Section 10.2 for covenants of either party
will not be exclusive of or limit any other remedies that may be available to
Buyer or the other Indemnified Persons but will be exclusive with respect to
representations and warranties.

     10.3 INDEMNIFICATION AND REIMBURSEMENT BY SELLERS - ENVIRONMENTAL MATTERS.
In addition to the provisions of Section 10.2, Sellers, jointly and severally,
in solidarity, will indemnify and hold harmless Buyer, the Acquired Company, and
the other Indemnified Persons, and will reimburse Buyer, the Acquired Company,
and any other Indemnified Person, for any Damages (including costs of cleanup,
containment, or other remediation) arising from or in connection with:

     (a) any Environmental, Health, and Safety Liabilities arising out of or
relating to:  (i) (A) the ownership, operation, or condition at any time on or
prior to the Closing Date of the Facilities or any other properties and assets
(whether real, personal, or mixed and whether tangible or intangible) in which
Sellers or the Acquired Company has or had an interest, or (B) any Hazardous
Materials or other contaminants that were present on the Facilities or such
other properties and assets at any time on or prior to the Closing Date; or (ii)
(A) any Hazardous Materials or other contaminants, wherever located, that were,
or were allegedly, generated, transported, stored, treated, Released, or
otherwise handled by Sellers or the Acquired Company or by any other Person for
whose conduct they are or may be held responsible at any time on or prior to the
Closing Date, or (B) any Hazardous Activities that were, or were allegedly,
conducted by Sellers or the Acquired Company or by any other Person for whose
conduct they are or may be held responsible; or

     (b) any bodily injury (including illness, disability, and death, and
regardless of when any such bodily injury occurred, was incurred, or manifested
itself), personal injury, property damage (including trespass, nuisance,
wrongful eviction, and deprivation of the use of real property), or other damage
of or to any Person, including any employee or former employee of Sellers or the
Acquired Company or any other Person for whose conduct they are or may be held
responsible, in any way arising from or allegedly arising from any Hazardous
Activity conducted or allegedly conducted with respect to the Facilities or the
operation of the Acquired Company prior to the Closing Date, or from Hazardous
Material that was (i) present or suspected to be present on or before the
Closing Date on or at the Facilities (or present or suspected to be present on
any other property, if such Hazardous Material emanated or allegedly emanated
from any of the Facilities and was present or suspected to be present on any of
the Facilities on or prior to the Closing Date) or (ii) Released or allegedly
Released by Sellers or the Acquired Company or any other Person for whose
conduct they are or may be held responsible, at any time on or prior to the
Closing Date.

                                       50
<PAGE>
 
Buyer will be entitled to control any Cleanup, any related Proceeding, and,
except as provided in the following sentence, any other Proceeding with respect
to which indemnity may be sought under this Section 10.3.  The procedure
described in Section 10.9 will apply to any claim solely for monetary damages
relating to a matter covered by this Section 10.3.

     10.4 INDEMNIFICATION AND REIMBURSEMENT BY BUYER.  Buyer will indemnify and
hold harmless Sellers, and will reimburse Sellers, for any Damages arising from
or in connection with (a) any Breach of any representation or warranty made by
Buyer in this Agreement or in any certificate delivered by Buyer pursuant to
this Agreement, (b) any Breach by Buyer of any covenant or obligation of Buyer
in this Agreement, (c) any claim by any Person for brokerage or finder's fees or
commissions or similar payments based upon any agreement or understanding
alleged to have been made by such Person with Buyer (or any Person acting on its
behalf) in connection with any of the Contemplated Transactions, or (d) any
product sold by or any services provided by the Acquired Company, including the
Existing Practice, after the Closing Date.

     10.5 TIME LIMITATIONS.  If the Closing occurs, Buyer will have no liability
(for indemnification or otherwise) with respect to any representation or
warranty, or covenant or obligation to be performed and complied with prior to
the Closing Date, unless on or before two years after the Closing Date Buyer is
given notice of a claim specifying the factual basis of that claim in reasonable
detail to the extent then known by Sellers.  If the Closing occurs, Sellers will
have no liability (for indemnification or otherwise) with respect to any
representation or warranty, or covenant or obligation to be performed and
complied with prior to the Closing Date, unless on or before two years after the
Closing Date Sellers are given notice of a claim specifying the factual basis of
that claim in reasonable detail to the extent then known by Buyer except that
Buyer may make a claim against Sellers at any time with respect to any
representation or warranty of Sellers or covenant or obligation to be performed
by Sellers contained in Sections 3.2(a), 3.2(b)(i), (iv) and (vi), 3.2(c), 3.3,
3.11, 3.13, and 3.19.

     10.6 LIMITATIONS ON AMOUNT - SELLERS.  Sellers will have no liability (for
indemnification or otherwise) with respect to the matters described in clause
(a), (c) or, to the extent relating to any failure to perform or comply prior to
the Closing Date, clause (b) of Section 10.2 until the total of all Damages with
respect to such matters exceeds $50,000, and then only for the amount by which
such Damages exceed $50,000.  However, this Section 10.6 will not apply to any
Breach of any of Sellers' representations and warranties of which any Seller had
actual knowledge at any time prior to the date on which such representation and
warranty is made or any intentional Breach by any Seller of any covenant or
obligation.  Notwithstanding anything in this Agreement to the contrary, no
individual Seller shall be liable in an amount greater than the value of the
Acquisition Price allocated to Seller as set forth in Section 2.1(a) through
(d).  For purposes of this Section, the value of the liabilities assumed under
Section 2.1(d) shall be allocated among the Sellers in the same proportion as
the cash component of the Acquisition Price set forth in Section 2.1(c).

     10.7 LIMITATIONS ON AMOUNT - BUYER.  Buyer will have no liability (for
indemnification or otherwise) with respect to the matters described in clause
(a) or (b) of Section 10.4 until the total of all Damages with respect to such
matters exceeds $50,000, and

                                       51
<PAGE>
 
then only for the amount by which such Damages exceed $50,000.  However, this
Section 10.7 will not apply to any intentional Breach of any of Buyer's
representations and warranties of which Buyer had actual knowledge at any time
prior to the date on which such representation and warranty is made or any
intentional Breach by Buyer of any covenant or obligation, and Buyer will be
liable for all Damages with respect to such Breaches.

     10.8 PROCEDURE FOR INDEMNIFICATION - DIRECT CLAIMS.  Upon notice to the
party from whom indemnification is sought, specifying in reasonable detail the
basis for such claim, the party seeking indemnification may make demand upon the
party from whom indemnification is sought to indemnify the other for any
undisclosed liability or obligation or cost of any undisclosed litigation or
losses related thereto, to the party seeking indemnification may be entitled
under this Section 10, on a dollar-for-dollar basis.  Such claims shall be paid
within 30 days of demand having been made therefor by the party seeking
indemnification.  If any disagreement exists regarding the validity or amount of
any such claims, they shall be resolved by submission of such disagreement to
binding arbitration conducted in accordance with the rules of the American
Arbitration Association and to be conducted in Houston, Texas if the party
seeking indemnification is a Seller, or Lancaster, Pennsylvania if the party
seeking indemnification is Buyer.  Neither the exercise of nor the failure to
exercise such right of claim or to give a notice of a Claim will constitute an
election of remedies for covenants of either party or limit the party seeking
indemnification in any manner in the enforcement of any other remedies for
covenants of either party that may be available to them, but the successful
exercise of such right will be the exclusive remedy with respect to
representations and warranties.

     10.9 PROCEDURE FOR INDEMNIFICATION -- THIRD PARTY CLAIMS.

     (a) Promptly after receipt by an indemnified party under Section 10.2,
10.4, or (to the extent provided in the last sentence of Section 10.3) Section
10.3 of notice of the commencement of any Proceeding against it, such
indemnified party will, if a claim is to be made against an indemnifying party
under such Section, give notice to the indemnifying part of the commencement of
such claim, but the failure to notify the indemnifying party will not relieve
the indemnifying party of any liability that it may have to any indemnified
party, except to the extent that the indemnifying party demonstrates that the
defense of such action is prejudiced by the indemnifying party's failure to give
such notice.

     (b) If any Proceeding referred to in Section 10.9(a) is brought against an
indemnified party and it gives notice to the indemnifying party of the
commencement of such Proceeding, the indemnifying party will be entitled to
participate in such Proceeding and, to the extent that it wishes (unless (i) the
indemnifying party is also a party to such Proceeding and the indemnified party
determines in good faith that joint representation would be inappropriate, (ii)
the indemnifying party fails to provide reasonable assurance to the indemnified
party of its financial capacity to defend such Proceeding and provide
indemnification with respect to such Proceeding, or (iii) a substantial portion
of the claim(s) are not subject to indemnification), to assume the defense of
such Proceeding and provide indemnification with counsel satisfactory to the
indemnified party and, after notice from the indemnifying party will not, as
long as it diligently conducts such defense, be liable to the indemnified party
under this Section for any fees of other counsel or any other expenses with
respect to the defense of such Proceeding, in

                                       52
<PAGE>
 
each case subsequently incurred by the indemnified party in connection with the
defense of such Proceeding, other than reasonable costs of investigation.  If
the indemnifying party assumes the defense of a Proceeding, (i) no compromise or
settlement of such claims may be effected by the indemnifying party without the
indemnified party's consent unless (A) there is no finding or admission of any
violation of Legal Requirements or any violation of the rights of any Person and
no effect on any other claims that may be made against the indemnified party,
and (B) the sole relief provided is monetary damages that are paid in full by
the indemnifying party; and (ii) the indemnifying party will have no liability
with respect to any compromise or settlement of such claims effected without its
consent.  If notice is given to an indemnifying party of the commencement of any
Proceeding and the indemnifying party does not, within ten days after the
indemnified party's notice is given, give notice to the indemnified party of its
election to assume the defense of such Proceeding, the indemnifying party will
be bound by any determination made in such Proceeding or any compromise or
settlement effected by the indemnified party.

     (c) Notwithstanding the foregoing, if an indemnified party determines in
good faith that there is a reasonable probability that a Proceeding may
adversely affect it or its affiliates other than as a result of monetary damages
for which it would be entitled to indemnification under this Agreement, the
indemnified party may, by notice to the indemnifying party, assume the exclusive
right to defend, compromise, or settle such Proceeding, but the indemnifying
party will not be bound by any determination of a Proceeding so defended or any
compromise or settlement effected without its consent (which may not be
unreasonably withheld).

     (d) Sellers hereby consent to the non-exclusive jurisdiction of any court
in which a Proceeding is brought against any Indemnified Person for purposes of
any claim that an Indemnified Person may have under this Agreement with respect
to such Proceeding or the matters alleged therein, and agree that process may be
served on Sellers with respect to such a claim anywhere in the world.

     11.  GENERAL PROVISIONS

     11.1 NONCOMPETITION.  Sellers recognize that Buyer's decision to enter into
this Agreement is induced primarily because of the covenants and assurances made
by Sellers in this Agreement; that Sellers' covenant not to compete is necessary
to ensure the continuation of the business and the reputation of Buyer; and that
irrevocable harm and damage will be done to Buyer if Sellers compete with Buyer
within certain specified areas.  Therefore, in consideration of the promises of
Buyer in this Agreement, Sellers covenant and agree that during the term of the
Management Services Agreement, and for a period of one (1) year after the
termination or expiration of the Management Services Agreement, Sellers, through
Medical Practice or individually, shall not directly or indirectly own, manage,
operate, control, or be otherwise associated with, participate in the management
or control of, be employed by, consult with, lend funds to, lend Sellers'
Medical Practice's name to, receive any remuneration from or maintain any
interest whatsoever in any enterprise having to do with the provision,
distribution, marketing, promotion, or advertising of any type of management or
administrative services or products to third parties in competition with the
Buyer within a thirty (30) mile radius of any current or future facility from
which Medical Practice provides Medical Services (the "Medical Practice Area").

                                       53
<PAGE>
 
     If any Seller shall breach any obligation of this Section, in addition to
any other remedies available under this Agreement, at law or in equity, Buyer
shall be entitled to enforce this Agreement by injunctive relief and by specific
performance of this Agreement, such relief to be without the necessity of
posting a bond, cash or otherwise.  Sellers acknowledge the damages that would
result from a violation of this Section 11 would be One Hundred Thousand Dollars
($100,000.00) per breaching Seller.  The breaching Seller(s) shall pay to Buyer
in cash this amount within thirty (30) days after Buyer notifies the breaching
Seller(s) of the breach of this Section 11 or after a final binding judgement.

     If any provision of this restrictive covenant is held by a court of
competent jurisdiction to be unenforceable due to an excessive time period,
geographic area, or restricted activity, the restrictive covenant shall be
reformed to comply with the time period, geographic area, or restricted activity
that would be held enforceable.

     11.2 EXPENSES.  Except as otherwise set forth in this Agreement, each party
to this Agreement will pay its own expenses and disbursements and its own
agents, representatives, and accountants.  Each party shall pay its own HSR Act
filing fees, if any.  In the event of termination of this Agreement, the
obligation of each party to pay its own expenses will be subject to any rights
of such party arising from a breach of this Agreement by another party.

     11.3 PUBLIC ANNOUNCEMENTS.  Except for required legal filings, any public
announcement or similar publicity with respect to this Agreement or the
Contemplated Transactions will be issued, if at all, at such time and in such
manner as Buyer and Sellers mutually determine.  Unless consented to by Buyer in
advance or required by Legal Requirements, prior to the Closing Sellers shall,
and shall cause the Acquired Company to, keep this Agreement strictly
confidential and may not make any disclosure of this Agreement to any Person.
Sellers and Buyer will consult with each other concerning the means by which the
Acquired Company's employees, customers, and supplies and others having dealings
with the Acquired Company will be informed of the Contemplated Transactions, and
Buyer will have the right to be present for any such communication.

     11.4 NOTICES.  All notices, consents, waivers, and other communications
under this Agreement must be in writing and will be deemed to have been fully
given when (a) delivered by hand (with written confirmation of receipt), (b)
sent by telecopier (with written confirmation of receipt), provided that a copy
is mailed by registered mail, return receipt requested, or (c) when received by
the addressee, if sent by a nationally recognized overnight delivery service
(receipt requested), in each case to the appropriate addresses and telecopier
numbers set forth below (or to such other addresses and telecopier numbers as a
party may designate by notice to the other parties):

     IOI:           Integrated Orthopaedics, Inc.
                    5858 Westheimer, Suite 500
                    Houston, Texas  77057
                    Attention: President
                    Facsimile Number: (713) 361-2000

                                       54
<PAGE>
 
                    Lancaster Orthopedic Group, P.C.
                    231 Granite Run Drive
                    Lancaster, PA  17601-6816
                    Facsimile Number: (717) 560-4159

     11.5 JURISDICTION; SERVICE OF PROCESS.  Any action or proceeding seeking to
enforce any provision of, or based on any right arising out of, this Agreement
may be brought against any of the parties in the courts of the State of Texas,
County of Harris, or, if it has or can acquire jurisdiction, in the United
States District Court for the Southern District of Texas, and each of the
parties consents to the jurisdiction of such courts (and of the appropriate
appellate courts) in any such action or proceeding and waives any objection to
venue laid therein.  Process in any action or proceeding referred to in the
preceding sentence may be served on any party anywhere in the world.

     11.6 FURTHER ASSURANCES.  The parties agree (a) to furnish upon request to
each other such further information, (b) to execute and deliver to each other
such other documents, and (c) to do such other acts and things, all as the other
party may reasonably request for the purpose of carrying out the intent of this
Agreement and the documents referred to in this Agreement.

     11.7 WAIVER.  The rights and remedies of the parties to this Agreement are
cumulative and not alternative.  Neither the failure nor any delay by any party
in exercising any right, power, or privilege under this Agreement or the
documents referred to in this Agreement will operate as a waiver of such right,
power, or privilege, and no single or partial exercise of any such right, power,
or privilege will preclude any other or further exercise of such right, power,
or privilege or the exercise of any other right, power, or privilege.  To the
maximum extent permitted by applicable law, (a) no claim or right arising out of
this Agreement or the documents referred to in this Agreement can be discharged
by one party, in whole or in part, by a waiver or renunciation of the claim or
right unless in writing signed by the other party; (b) no waiver that may be
given by a party will be applicable except in the specific instance for which it
is given; and (c) no notice to or demand on one party will be deemed to be a
waiver of any obligation of such party or of the right of the party giving such
notice or demand to take further action without notice or demand as provided in
this Agreement or the documents referred to in this Agreement.

     11.8 ENTIRE AGREEMENT AND MODIFICATION.  This Agreement supersedes all
prior agreements between the parties with respect to its subject matter
(including the Letter of Intent) and constitutes (along with the documents
referred to in this Agreement) a complete and exclusive statement of the terms
of the agreement between the parties with respect to its subject matter.  This
Agreement may not be amended except by a written agreement executed by the party
to be charged with the amendment.

     11.9 SCHEDULES AND EXHIBITS.

     In the event of any inconsistency between the statements in the body of
this Agreement and those in the Schedules (other than an exception expressly set
forth as such in the Schedules

                                       55
<PAGE>
 
with respect to a specifically identified representative or warranty), the
statements in the body of this Agreement will control.

     11.10  ASSIGNMENTS, SUCCESSORS, AND NO THIRD-PARTY RIGHTS.  Sellers may not
assign any of their rights under this Agreement without the prior consent of
Buyer, which will not be unreasonably withheld.  Buyer may assign any of its
rights under this Agreement upon (1) the merger, consolidation, or sale of
substantially all the assets of Buyer or (2) the consent of the Joint Policy
Board as that term is used in the Management Services Agreement.  Buyer may
assign this Agreement without the consent of Sellers to entities owned or
controlled by Buyer, owning or controlling Buyer, or under common control or
ownership with Buyer.  This Agreement will apply to, be binding in all respects
upon, and inure to the benefit of the successors and permitted assigns of the
parties.  Nothing expressed or referred to in this Agreement will be construed
to give any Person other than the parties to this Agreement any legal or
equitable right, remedy, or claim under or with respect to this Agreement or any
provision of this Agreement.  This Agreement and all of its provisions and
conditions are for the sole and exclusive benefit of the parties to this
Agreement and their successors and assigns.

     11.11  SEVERABILITY.  If any provision of this Agreement is held invalid or
unenforceable by any court of competent jurisdiction, the other provisions of
this Agreement will remain in full force and effect.  Any provision of this
Agreement held invalid or unenforceable only in part or degree will remain in
full force and effect to the extent not held invalid or unenforceable.

     11.12  SECTION HEADINGS, CONSTRUCTION.  The headings of Sections in this
Agreement are provided for convenience only and will not affect its construction
or interpretation.  All references to "Sections" refer to the corresponding
Sections of this Agreement.  All words used in this Agreement will be construed
to be of such gender or number as the circumstances require.  Unless otherwise
expressly provided, the word "including" does not limit the preceding words or
terms.

     11.13  TIME OF ESSENCE.  With regard to all dates and tie periods set forth
or referred to in this Agreement, time is of the essence.

     11.14  GOVERNING LAW.  This Agreement will be governed by and construed
under the laws of the State of Texas without regard to conflicts of laws
principles.

     11.15  COUNTERPARTS.  This Agreement may be executed in one or more
counterparts, each of which will be deemed to be an original copy of this
Agreement and all of which, when taken together, will be deemed to constitute
one and the same agreement.

     11.16  TAX RETURNS.  Sellers shall file or cause to be filed a final United
States federal tax return for the Acquired Company up through the Closing Date
within the legally required time period for such filing (including any
extensions) following the Closing Date and shall deliver to Buyer a certified
copy of the return and all workpapers within ten (10) working days of the such
filing.

                                       56
<PAGE>
 
     11.17  CONFIDENTIALITY.  Through oral and written communications, Buyer and
Sellers will provide to each other business and other information.  There will
be disclosing parties and recipients of such information as those terms are used
below.  The term "information" shall mean all information that the disclosing
party has furnished or is furnishing to the recipient, whether furnished before
or after the date of this Agreement, whether tangible or intangible and in
whatever form or medium provided, as well as all information generated by the
recipient or by its representatives, as defined below, that contains, reflects
to, or is derived from the furnished information.  In consideration of the
disclosure to each other of information, the recipient agrees that it will keep
the information confidential and that the information will not, without the
prior written consent of the disclosing party, be disclosed by the recipient or
by its officers, directors, partners, employees, affiliates, agents, or
representatives (collectively, "representative"), in any manner whatsoever, in
whole or in part.  The recipient agrees to receive and review this information
in strict confidence and not to use the information in any manner other than
necessary for the conduct of discussions hereunder.  The recipient will take all
reasonable precautions to avoid unauthorized disclosures of such information and
knowledge derived therefrom and to safeguard the confidential nature of such
information.  The recipient agrees not to duplicate or make copies of any
documents concerning the information furnished pursuant to this Agreement except
as necessary.  Moreover, the recipient agrees to transmit the information only
to such of its representatives who need to know the information for the sole
purpose of assisting the recipient in evaluating the transaction, who are
informed of this Agreement, and who agree to be bound by the terms hereof as if
a party hereto.

     Buyer is a publicly traded company and may disclose such information as is
required by  its obligations under the Securities Act and other laws.

     11.18  WILLOW VALLEY.  Within sixty (60) days of Closing, Sellers shall
deliver to Buyer the following:

          (a) assignment of the office lease for Willow Valley executed by the
     Acquired Company and Existing Practice, in the form of Exhibit 11.18(a);

          (b) landlord's consent and estoppel certificate executed on behalf of
     _______ ______________, dated as of a date not after the Closing Date, each
     in the form of Exhibit 11.18(b).

     11.19  PENNSYLVANIA SECURITIES LAWS.  Sellers shall not, except in
accordance with Regulation 204.011 of the Pennsylvania Securities Act, sell IOI
Common Stock received as  Acquisition Price within twelve months of its
purchase.

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first written above.


                              INTEGRATED ORTHOPAEDICS, INC.

                                       57
<PAGE>
 
                              By: /s/ Ronald E. Pierce
                                 -----------------------------------------
                                    Ronald E. Pierce
                                    President  and Chief Operating Officer


WAYNE CONRAD, M.D.                  /s/ Wayne Conrad, M.D.


J. PAUL LYET, M.D.                  /s/ J. Paul Lyet, M.D.


TIMOTHY TYMON, M.D.                 /s/ Timothy Tymon, M.D.


RAYMOND PEART, M.D.                 /s/ Raymond Peart, M.D.


I. STANLEY PORTER, M.D.             /s/ I. Stanley Porter, M.D.


GARY ZARTMAN, M.D.                  /s/ Gary Zartman, M.D.


MARK K. PEREZOUS, M.D.              /s/ Mark K. Perezous, M.D.



The undersigned, Karen Conrad, spouse of Wayne Conrad, M.D., only for the
purpose of conveying any and all property interest that she may have in the
Acquired Company, hereby agrees to join in the execution of this Stock Purchase
Agreement and in such other conveyance documents as are necessary or desirable
to convey all of her interests in the Acquired Company to IOI.


                              Karen Conrad  
                              ---------------------------------- 
                              Print Name

                              /s/ Karen Conrad  
                              ---------------------------------- 
                              Signature

                                       58
<PAGE>
 
The undersigned, Kathleen Lyet, spouse of J. Paul Lyet, M.D., only for the
purpose of conveying any and all property interest that she may have in the
Acquired Company, hereby agrees to join in the execution of this Stock Purchase
Agreement and in such other conveyance documents as are necessary or desirable
to convey all of her interests in the Acquired Company to IOI.


                              Kathleen Lyet 
                              ----------------------------------  
                              Print Name

                              /s/ Kathleen Lyet  
                              ---------------------------------- 
                              Signature


The undersigned, Eileen Tymon, spouse of Timothy Tymon, M.D., only for the
purpose of conveying any and all property interest that she may have in the
Acquired Company, hereby agrees to join in the execution of this Stock Purchase
Agreement and in such other conveyance documents as are necessary or desirable
to convey all of her interests in the Acquired Company to IOI.


                              Eileen Tymon  
                              ---------------------------------- 
                              Print Name

                              /s/ Eileen Tymon  
                              ----------------------------------  
                              Signature


The undersigned, Pamela Koch, spouse of Raymond Peart, M.D., only for the
purpose of conveying any and all property interest that she may have in the
Acquired Company, hereby agrees to join in the execution of this Stock Purchase
Agreement and in such other conveyance documents as are necessary or desirable
to convey all of her interests in the Acquired Company to IOI.


                              Pamela Koch  
                              ----------------------------------  
                              Print Name

                              /s/ Pamela Koch  
                              ---------------------------------- 
                              Signature

                                       59
<PAGE>
 
The undersigned, Paula Porter, spouse of I. Stanley Porter, M.D., only for
the purpose of conveying any and all property interest that she may have in the
Acquired Company, hereby agrees to join in the execution of this Stock Purchase
Agreement and in such other conveyance documents as are necessary or desirable
to convey all of her interests in the Acquired Company to IOI.


                              Paula Porter  
                              ---------------------------------- 
                              Print Name

                              /s/ Paula Porter  
                              ----------------------------------  
                              Signature


The undersigned, Judy Zartman, spouse of Gary Zartman, M.D., only for the
purpose of conveying any and all property interest that she may have in the
Acquired Company, hereby agrees to join in the execution of this Stock Purchase
Agreement and in such other conveyance documents as are necessary or desirable
to convey all of her interests in the Acquired Company to IOI.


                              Judy Zartman  
                              ---------------------------------- 
                              Print Name

                              /s/ Judy Zartman  
                              ---------------------------------- 
                              Signature


The undersigned, Stephanie Perezous, spouse of Mark K. Perezous, M.D., only for
the purpose of conveying any and all property interest that she may have in the
Acquired Company, hereby agrees to join in the execution of this Stock Purchase
Agreement and in such other conveyance documents as are necessary or desirable
to convey all of her interests in the Acquired Company to IOI.


                              Stephanie Perezous  
                              ----------------------------------  
                              Print Name

                              /s/ Stephanie Perezous  
                              ---------------------------------- 
                              Signature

                                       60


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