Document:

<PAGE>   1
                                                                     EXHIBIT 4.9

                                                   UNIT PURCHASE AGREEMENT,
                                            dated as of June 28, 2000, among
                                            SMITH & NEPHEW DISPOSAL, INC., a
                                            Delaware corporation (the "Seller"),
                                            and THE PURCHASERS IDENTIFIED ON
                                            ANNEX I HERETO (collectively, the
                                            "Purchasers").

               The Seller desires to sell to the Purchasers, and the Purchasers
desire to purchase from the Seller, 54,000 Common Units (the "Purchased Units")
of DonJoy, L.L.C., a Delaware limited liability company (the "Company").

               In consideration of the mutual promises herein made and in
consideration of the representations, warranties, and covenants herein
contained, the Seller and the Purchasers agree as follows:

                                    ARTICLE I

                                 PURCHASED UNITS

1.1     SALE OF THE PURCHASED UNITS.

               (a) Upon the terms and subject to the conditions set forth in
this Agreement, and in reliance upon the representations and warranties
hereinafter set forth, at the Closing, the Seller shall issue, sell and deliver
to each Purchaser, and each such Purchaser shall purchase from the Seller, that
number of Purchased Units set forth opposite the name of such Purchaser in the
second column of Annex I, free and clear of all liens, claims and encumbrances
of any nature whatsoever (collectively, "Liens") (other than pursuant to the
Existing Agreements (as defined below)), for the aggregate purchase price set
forth opposite the name of such Purchaser in the third column of Annex I.

               (b) Each party hereto waives any rights such party may have under
Section 6 of the Members' Agreement with respect to the sale by the Seller to
the Purchasers of the Purchased Units in accordance with the provisions of this
Agreement and acknowledges its or his consent to such sale for purposes of
Section 7.1(a) of the Operating Agreement.

               (c) As used herein, the term "Existing Agreements" means (i) the
Second Amended and Restated Operating Agreement of the Company, dated as of July
30, 1999, among the Seller, the Purchasers and the other parties thereto (if
any), as amended, supplemented and otherwise modified from time to time (the
"Operating Agreement"), and (ii) the Members' Agreement of the Company, dated as
of June 30, 1999, among the Company, the Seller, the Purchasers and the other
parties thereto (if any), as amended, supplemented or otherwise modified from
time to time (the "Members' Agreement").

1.2     CLOSING.

               (a) The closing of the issuance, sale and purchase of the
Purchased Units pursuant to Section 1.1(a) (the "Closing") shall take place at
10:00 a.m., New York City time, on the date hereof (the "Closing Date") at the
offices of O'Sullivan Graev & Karabell, LLP, 30 Rockefeller Plaza, New York, New
York 10112.

<PAGE>   2
               (b) At the Closing, (i) the Seller shall deliver to each
Purchaser the certificates representing the Purchased Units to be purchased by,
and issued and sold to, such Purchaser pursuant to Section 1.1(a), duly endorsed
in blank for transfer or accompanied by stock powers duly executed in blank,
sufficient in form and substance to convey to such Purchaser good title to such
Purchased Units, free and clear of all Liens (other than pursuant to the
Existing Agreements), and (ii) each Purchaser, in full payment for the Purchased
Units to be purchased by, and sold to, such Purchaser pursuant to Section
1.1(a), shall deliver to the Seller the purchase price to be paid by such
Purchaser for such Purchased Units pursuant to Section 1.1(a), in immediately
available funds by wire transfer to Bank One, Chicago, Illinois, ABA Routing No.
071000013, Account No. 5947693, Account Name: Smith & Nephew, Inc.

1.3     FURTHER ASSURANCES.

        The Seller shall, at any time after the Closing, upon the request of any
Purchaser and at such Purchaser's expense, do, execute, acknowledge and deliver,
and cause to be done, executed, acknowledged and delivered, all such further
acts, deeds, assignments, transfers, conveyances, powers of attorney or
assurances as may be reasonably required to transfer, convey, grant and confirm
to and vest in such Purchaser good title to all of the Purchased Units purchased
by, and sold to such Purchaser pursuant to Section 1.1(a), free and clear of all
Liens (other than pursuant to the Existing Agreements).

                                   ARTICLE II

                  REPRESENTATIONS AND WARRANTIES OF THE SELLER

               As a material inducement to the Purchasers to enter into and
perform their respective obligations under this Agreement, the Seller hereby
represents and warrants to the Purchasers as set forth in Sections 2.1 through
2.4 below.

2.1     AUTHORITY; CORPORATE ACTIONS; ENFORCEABILITY.

        The Seller has the requisite corporate power and authority to execute
and deliver this Agreement and to perform its obligations hereunder. The
execution, delivery and performance by the Seller of this Agreement and the
performance of its obligations hereunder have been duly authorized by all
necessary corporate action on its part and no other corporate proceedings on its
part are necessary to authorize this Agreement or the performance of its
obligations hereunder. The Seller has duly executed and delivered this
Agreement, and this Agreement constitutes its legal, valid and binding
obligation, enforceable against it in accordance with its terms, except as such
enforceability may be limited by bankruptcy, insolvency, reorganization,
fraudulent conveyance or other similar laws affecting the enforcement of
creditors' rights generally and general equitable principles.

2.2     CONSENTS; NO CONFLICTS

        The execution and delivery by the Seller of this Agreement and the
performance by it of its obligations hereunder does not: (i) conflict with, or
result in any violation of or default (with or without notice or lapse of time,
or both) under, or give rise to a right of termination, cancellation or
acceleration of any obligation or a loss of a benefit under, or result in the
creation

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<PAGE>   3
of any Lien upon any of the assets owned or used by the Seller under, any
provision of: (A) the certificate of incorporation or bylaws of the Seller; (B)
any lease, license, contract or other agreement or commitment (each, a
"Contract") to which the Seller is a party or by which any of the Seller's
properties or assets is bound (other than the Existing Agreements); (C) any
judgment, order, compliance agreement, injunction, award or decree issued by any
Governmental Authority applicable to the Seller or any of the Seller's
properties or assets; or (D) any law, rule, regulation, ordinance or code of any
Governmental Authority applicable to the Seller or any of the Seller's
properties or assets; or (ii) require the Seller to obtain any consent,
approval, license, permit, order or authorization of, or make, any registration,
declaration or filing with, any Governmental Authority or any other Person. As
used in this Agreement, the term "Governmental Authority" means any Federal,
state, local or foreign government, court of competent jurisdiction,
administrative agency or commission or other governmental authority and the term
"Person" means and includes an individual, a partnership, a corporation, a
limited liability company, an association, a joint stock company, a trust, joint
venture, an unincorporated organization or a Governmental Authority.

2.3     OWNERSHIP.

        The Seller is the lawful owner, of record and beneficially, of the
Purchased Units and has good and marketable title to such Purchased Units, free
and clear of any and all Liens (other than pursuant to the Existing Agreements).
Upon the Seller's delivery to each Purchaser at the Closing of the Purchased
Units to be purchased by, and issued and sold to, such Purchaser pursuant to
Section 1.1(a) and the payment in full at the Closing by such Purchaser of the
purchase price for such Purchased Units pursuant to Section 1.2, such Purchaser
will receive good and marketable title to such Purchased Units, free and clear
of all Liens (other than pursuant to the Existing Agreements). Except for the
Existing Agreements, (i) there are no outstanding options, warrants, rights,
calls or other Contracts to which the Seller or any Affiliate thereof is a party
to sell or assign any of the Purchased Units and (ii) there are no Contracts to
which the Seller or any Affiliate thereof is a party which relate to the
Purchased Units. As used herein, the term "Affiliate" means, with respect to any
specified Person, any other Person that, directly or indirectly, through one or
more intermediaries, controls, is under common control with, or controlled by,
such specified Person and the term "control" means the possession, direct or
indirect, of the power to direct or cause the direction of the management and
policies of a Person, whether through the ownership of voting securities, by
contract, as trustee or executor or otherwise.

2.4     BROKERS.

        No Person has acted, directly or indirectly, as a broker, finder or
financial advisor of the Seller or any Affiliate thereof in connection with the
transactions contemplated by this Agreement. No Person is entitled to receive
any broker's, finder's or similar fee or commission from the Seller or any
Affiliate thereof in connection with this Agreement or the consummation of the
transactions contemplated thereby, based in any way on any Contract made by or
on behalf of the Seller or any Affiliate thereof.

                                   ARTICLE III

                                        3
<PAGE>   4
                     SEVERAL REPRESENTATIONS AND WARRANTIES
                                OF THE PURCHASERS

               As a material inducement to the Seller to enter into and perform
its obligations under this Agreement, each of the Purchasers hereby severally
(as to such Purchaser only) represents and warrants to the Seller as set forth
in Sections 3.1 through 3.3 below.

3.1     AUTHORITY; ACTIONS; ENFORCEABILITY.

        If such Purchaser is not a natural Person, such Purchaser has the
requisite corporate or limited partnership power and authority to execute and
deliver this Agreement and to perform its obligations hereunder, and the
execution and delivery by such Purchaser of this Agreement and the performance
by such Purchaser of its obligations hereunder have been duly authorized by all
necessary corporate or limited partnership action on the part of such Purchaser
and no other corporate or limited partnership proceedings on the part of such
Purchaser are necessary to authorize this Agreement or to perform its
obligations hereunder. Such Purchaser has duly executed and delivered this
Agreement, and this Agreement constitutes the legal, valid and binding
obligation of such Purchaser, enforceable against such Purchaser in accordance
with its terms, except as such enforceability may be limited by bankruptcy,
insolvency, reorganization, fraudulent conveyance or other similar laws
affecting the enforcement of creditors' rights generally and general equitable
principles.

3.2     INVESTMENT REPRESENTATIONS.

               (a) Such Purchaser is acquiring the Purchased Units set forth
opposite its or his name on Annex I for its or his own account, for investment
only and not with a view to effecting a distribution thereof in violation of the
Securities Act or applicable state securities laws. Such Purchaser understands
that the Purchased Units to be acquired by such Purchaser pursuant to this
Agreement have not been registered under the Securities Act or the securities
laws of any state or other jurisdiction and cannot be disposed of unless
subsequently registered under the Securities Act and any applicable state laws
or an exemption from such registration is available. Such Purchaser has such
knowledge and experience in financial and business matters such that such
Purchaser is capable of evaluating the merits and risks of an investment in the
Purchased Units to be acquired by such Purchaser hereunder and making an
informed investment decision with respect thereto and that such Purchaser has
consulted with and relied exclusively upon the advice of such Purchaser's own
counsel and tax and financial advisors in connection with such Purchaser's
investment decision to acquire such Purchased Units.

               (b) Such Purchaser qualifies as an "accredited investor" (as
defined in Rule 501(a) under the Securities Act), provided, that, in the case of
DJC, Inc. ("DJC"), in lieu of such representation and warranty as to the
qualification of DJC as an "accredited investor," DJC represents and warrants
that all investment decisions with respect to DJC's investment in the Purchased
Units to be acquired by DJC hereunder were made on behalf of DJC by TCW/Crescent
Mezzanine Partners II, L.P. and TWC Leverage Income Trust II, L.P., the holders,
collectively, of 100% of the outstanding capital stock of DJC.

               (c) Such Purchaser further understands that the exemption from
registration afforded by Rule 144 (the provisions of which are known to such
Purchaser) under the Securities

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Act depends on the satisfaction of various conditions, and that, if
applicable, Rule 144 may only afford the basis for sales of the Purchased Units
to be acquired by such Purchaser hereunder only in limited amounts.

3.3     BROKERS.

        No Person has acted, directly or indirectly, as a broker, finder or
financial advisor of such Purchaser in connection with the transactions
contemplated by this Agreement. No Person is entitled to receive any broker's,
finder's or similar fee or commission from such Person in connection with this
Agreement or the consummation of the transactions contemplated thereby, based in
any way on any Contract made by or on behalf of such Purchaser.

                                   ARTICLE IV

                                  MISCELLANEOUS

4.1     SURVIVAL OF REPRESENTATIONS, WARRANTIES AND COVENANTS.

        All representations, warranties and covenants hereunder shall survive
the Closing and shall in no way be affected by any knowledge possessed by, or
investigation of the subject matter thereof made by or on behalf of, the
Purchasers.

4.2     REMEDIES.

        In case any one or more of the covenants set forth in this Agreement
shall have been breached by any party hereto, each other party hereto may
proceed to protect and enforce its or his rights either by suit in equity and/or
by action at law, including an action for damages as a result of any such breach
and/or an action for specific performance of any such covenant. In the event
that any dispute between the Seller and any of the Purchasers should result in
litigation, the prevailing party in such dispute shall be entitled to recover
from the losing party all reasonable fees, costs and expenses of enforcing any
right of such prevailing party under or with respect to this Agreement,
including, without limitation, such reasonable fees and expenses of attorneys
and accountants (which shall include, without limitation, all fees, costs and
expenses of appeals).

4.3     EXPENSES; TRANSFER TAXES.

        Except as set forth in the next sentence, each party hereto will pay its
own costs and expenses incident to its negotiation and preparation of this
Agreement and to its performance of its obligations hereunder, including the
fees, expenses and disbursements of its counsel and accountants. The Seller
agrees that it will pay, and will hold each Purchaser harmless from, any and all
liability with respect to any transfer, stamp or similar taxes which may be
determined to be payable in connection with the execution, delivery and
performance of this Agreement or any modification, amendment or alteration of
the terms or provisions of this Agreement.

                                       5
<PAGE>   6
4.4     SUCCESSORS AND ASSIGNS.

        This Agreement shall bind and inure to the benefit of the Seller and
each of the Purchasers and the respective successors, assigns, heirs and
personal representatives of the Seller and each of the Purchasers.

4.5     ENTIRE AGREEMENT.

        This Agreement contains the entire agreement among the parties with
respect to the subject matter hereof and supersedes all prior and
contemporaneous arrangements or understandings with respect thereto.

4.6     NOTICES.

               Any notices, demands, consents or other communications that are
given or made hereunder shall be in writing and shall be given or made to any
party hereto by physical delivery, U.S. mail (registered or certified mail,
postage prepaid, return receipt requested) or overnight courier or by
transmission by facsimile to such party at its, his or her address (or facsimile
number) set forth below, or such other address (or facsimile number) as shall
have been specified by like notice by such party:

            (i) if to the Seller, to

                Smith & Nephew Disposal, Inc.
                c/o Smith & Nephew, Inc.
                1450 Brooks Road
                Memphis, TN 38116
                Attention: Chief Financial Officer
                Telephone: (901) 396-2121
                Facsimile: (901) 399-6151

                with a copy (which shall not constitute notice) to:

                Smith & Nephew Disposal, Inc.
                c/o Smith & Nephew, Inc.
                1450 Brooks Road
                Memphis, TN 38116
                Attention: General Counsel
                Telephone: (901) 396-2121
                Facsimile: (901) 396-7824

           (ii) if to any Purchaser, to such Purchaser at the address
                set forth on Annex I immediately below the name of
                such Purchaser.

Each such notice, demand, consent or other communication shall be effective upon
receipt in the case of physical delivery or overnight courier, upon confirmation
of receipt by or on behalf of the addressee in the case of transmission by
facsimile if received prior to 5:00 p.m., New York City time, and, if received
after 5:00 p.m., New York City time, on the next Business Day

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immediately after the date of such receipt, and five Business Days after deposit
in the U.S. mails in the case of mailing. As used herein, the term "Business
Day" means any day, other than a Saturday, Sunday or a day on which banking
institutions in the State of New York are authorized or obligated by law or
executive order to close.

4.7     AMENDMENTS.

        The terms and provisions of this Agreement may be modified or amended,
or any of the provisions hereof waived, temporarily or permanently, pursuant to
the written consent of the Seller and the Purchasers.

4.8     GOVERNING LAW, WAIVER OF JURY TRIAL; JURISDICTION.

               (a) All questions concerning the construction, interpretation and
validity of this Agreement shall be governed by and construed and enforced in
accordance with the internal law of the State of Delaware, without giving effect
to any choice or conflict of law provision or rule (whether in the State of
Delaware or any other jurisdiction) that would cause the application of the law
of any jurisdiction other than the State of Delaware. In furtherance of the
foregoing, the internal law of the State of Delaware will control the
interpretation and construction of this Agreement, even if under such
jurisdiction's choice of law or conflict of law analysis, the internal law of
some other jurisdiction would ordinarily or necessarily apply.

               (b) BECAUSE DISPUTES ARISING IN CONNECTION WITH COMPLEX FINANCIAL
TRANSACTIONS ARE MOST QUICKLY AND ECONOMICALLY RESOLVED BY AN EXPERIENCED AND
EXPERT PERSON AND THE PARTIES WISH APPLICABLE LAWS TO APPLY (RATHER THAN
ARBITRATION RULES), THE PARTIES DESIRE THAT THEIR DISPUTES BE RESOLVED BY A
JUDGE APPLYING SUCH APPLICABLE LAWS. THEREFORE, TO ACHIEVE THE BEST COMBINATION
OF THE BENEFITS OF THE JUDICIAL SYSTEM AND OF ARBITRATION, THE PARTIES HERETO
WAIVE ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, SUIT OR PROCEEDING BROUGHT TO
ENFORCE OR DEFEND ANY RIGHTS OR REMEDIES UNDER THIS AGREEMENT OR ANY DOCUMENTS
RELATED HERETO.

4.9     SEVERABILITY.

        Whenever possible, each provision of this Agreement shall be interpreted
in such a manner as to be effective and valid under applicable law, but if any
provision of this Agreement is held to be invalid, illegal or unenforceable in
any respect under any applicable law or rule in any jurisdiction, such
invalidity, illegality or unenforceability will not affect any other provision
or the effectiveness or validity of any provision in any other jurisdiction, and
this Agreement will be reformed, construed and enforced in such jurisdiction as
if such invalid, illegal or unenforceable provision had never been contained
herein.

4.10    INTERPRETATION.

               The section headings in this Agreement are for convenience only
and shall not control or affect the meaning of any provision of this Agreement.
Annex I hereto is hereby incorporated in and made a part of this Agreement as if
set forth on full herein. Where specific

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<PAGE>   8
language (such as the word "including") is used to clarify by example a general
statement contained herein, such specific language shall not be deemed to
modify, limit or restrict in any manner the construction of the general
statement to which it relates.

4.11    DISCLAIMER OF WARRANTIES.

        The Seller makes no representations or warranties with respect to any
projections, forecasts or forward-looking information provided to the
Purchasers. There is no assurance that any projected or forecasted results will
be achieved. EXCEPT AS TO THOSE MATTERS EXPRESSLY COVERED BY THE REPRESENTATIONS
AND WARRANTIES IN THIS AGREEMENT, THE PURCHASED UNITS (AND THE BUSINESS AND
ASSETS OF THE COMPANY REPRESENTED THEREBY) ARE BEING SOLD TO THE PURCHASERS ON
AN "AS IS, WHERE IS" BASIS AND THE SELLER DISCLAIMS ALL OTHER WARRANTIES,
REPRESENTATIONS AND GUARANTEES, WHETHER EXPRESS OR IMPLIED. THE SELLER MAKES NO
REPRESENTATION OR WARRANTY AS TO MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR
PURPOSE AND NO IMPLIED WARRANTIES WHATSOEVER. THE PURCHASE PRICE WITH RESPECT TO
THE PURCHASED UNITS WAS NEGOTIATED PRIVATELY BETWEEN THE PARTIES. THE SELLER
ACKNOWLEDGES THAT IT HAS SUCH KNOWLEDGE AND EXPERIENCE IN FINANCIAL AND BUSINESS
MATTERS THAT IT IS CAPABLE OF EVALUATING THE MERITS OF A SALE OF THE PURCHASED
UNITS ON THE TERMS SET FORTH HEREIN, HAS HAD AN OPPORTUNITY TO ASK QUESTIONS
REGARDING THE BUSINESS, PROPERTIES, PROSPECTS AND FINANCIAL CONDITION OF THE
COMPANY AND THE ADEQUACY OF THE PURCHASE PRICE FOR THE PURCHASED UNITS AND
ANSWERS HAVE BEEN PROVIDED TO ALL SUCH QUESTIONS. Each Purchaser acknowledges
that neither the Seller nor any of its representatives nor any other Person has
made any representation or warranty, express or implied, as to the accuracy or
completeness of any memoranda, charts, summaries or schedules heretofore made
available by the Seller or its representatives to such Purchaser or any other
information which is not included in this Agreement, and neither the Seller nor
any of its representatives nor any other Person will have or be subject to any
liability to any Purchaser, any Affiliate thereof or any other Person resulting
from the distribution of any such information to, or use of any such information
by, any Purchaser, any Affiliate thereof or any of their agents, consultants,
accountants, counsel or other representatives.

4.12    COUNTERPARTS.

               This Agreement may be executed in any number of counterparts, and
each such counterpart shall be deemed to be an original instrument, but all such
counterparts together shall constitute but one agreement. This Agreement, and
any amendments, modifications or waivers hereof, to the extent signed and
delivered by means of a facsimile machine, shall be treated in all manner and
respects as an original agreement or instrument and shall be considered to have
the same binding legal effect as if it were the original signed version thereof
delivered in person. At the request of any party hereto or to any such
amendment, modification or waiver, each other party hereto or thereto shall
reexecute original forms thereof and deliver them to all other parties.

                                     * * * *

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<PAGE>   9
               IN WITNESS WHEREOF, the parties hereto have executed this Unit
Purchase Agreement as of the date first above written.

                                            SELLER

                                            SMITH & NEPHEW DISPOSAL, INC.

                                            By: /s/ CLIFF LOMAX
                                               ---------------------------------
                                                Name:  Cliff Lomax
                                                Title: President & Treasurer

                                            GUARANTOR

                                            Smith & Nephew, Inc. (the
                                            "Guarantor") hereby unconditionally
                                            and irrevocably guarantees to the
                                            Purchasers the full and timely
                                            performance and payment of all of
                                            the Seller's obligations under this
                                            Agreement. The Guarantor hereby
                                            agrees that the Purchasers, or any
                                            of them, may proceed against the
                                            Guarantor for the performance or
                                            payment of such obligations. In
                                            addition, the Guarantor hereby
                                            waives all special suretyship
                                            defenses and notice requirements.

                                            SMITH & NEPHEW, INC.

                                            By: /s/ CLIFF LOMAX
                                               ---------------------------------
                                                Name:  Cliff Lomax
                                                Title: Treasurer

<PAGE>   10
               IN WITNESS WHEREOF, the parties hereto have executed this Unit
Purchase Agreement as of the date first above written.

                                           PURCHASER

                                           CHASE DJ PARTNERS, LLC

                                           BY: FAIRFIELD CHASE MEDICAL PARTNERS,
                                               LLC, ITS MANAGING MEMBER

                                           By: /s/ CHARLES T. ORSATTI
                                              ----------------------------------
                                               Charles T. Orsatti
                                               Managing Member

<PAGE>   11
               IN WITNESS WHEREOF, the parties hereto have executed this Unit
Purchase Agreement as of the date first above written.

                                            PURCHASER

                                            LESLIE H. CROSS & DEBORAH L. CROSS
                                            FAMILY TRUST

                                            By: /s/ LESLIE H. CROSS
                                               ---------------------------------
                                                Name: Leslie H. Cross
                                                Title: Co-Trustee

<PAGE>   12
               IN WITNESS WHEREOF, the parties hereto have executed this Unit
Purchase Agreement as of the date first above written.

                                            PURCHASER

                                            /s/ CYRIL TALBOT III
                                            ------------------------------------
                                            Cyril Talbot III

<PAGE>   13
              IN WITNESS WHEREOF, the parties hereto have executed this Unit
Purchase Agreement as of the date first above written.

                                            PURCHASER

                                            /s/ MICHAEL R. McBrayer
                                            ------------------------------------
                                            Michael R. McBrayer

<PAGE>   14
                                     ANNEX I

<TABLE>
<CAPTION>
                                                       NUMBER OF
PURCHASER                                            PURCHASED UNITS       PURCHASE PRICE
---------                                            ---------------       ----------------
<S>                                                  <C>                   <C>
CHASE DJ PARTNERS, LLC                                      52,495         $   5,722,007.53
c/o Chase Capital Partners
1221 Avenue of the Americas
New York, NY 10020-1080
Attention: John Daileader
Tel: (212) 898-3400
Fax: (212) 898-4301

with a copy (which shall not constitute notice) to:

O'Sullivan Graev & Karabell, LLP
30 Rockefeller Plaza, 24th Floor
New York, NY 10112
Attention: Harvey M. Eisenberg, Esq
Telephone: (212) 408-2400
Facsimile: (212) 728-5950

LESLIE H. CROSS & DEBORAH L. CROSS                           1,017         $     110,805.73
FAMILY TRUST

MICHAEL R. MCBRAYER                                            244         $      26,593.37

CYRIL TALBOT III                                               244         $      26,593.37
</TABLE>

                           COMPANY CONSENT AND WAIVER

               DonJoy, L.L.C., a Delaware limited liability company (the
"Company"), hereby waives any rights that the Company may have under Section 6
of the Member's Agreement with respect to the sale by the Seller to the
Purchasers of the Purchased Units in accordance with the provisions of the Unit
Purchase Agreement dated as of June 28, 2000, to which this Company Consent and
Waiver is attached (the "Unit Purchase Agreement"). In addition, by reason of
its
<PAGE>   15
prior receipt of the proposed Unit Purchase Agreement, the Company confirms that
it has received prior written notice of such sale from the Seller pursuant to
Section 7.2(b) of the Operating Agreement. Furthermore, the Company hereby
certifies that all members of the Company (excluding the Seller) who hold Units
(as defined in the Operating Agreement) have consented to such sale for purposes
of Section 7.1(a) of the Operating Agreement.

               Capitalized terms used and not otherwise defined in this Company
Consent and Waiver have the meanings ascribed to them in the Unit Purchase
Agreement.

               Dated: June 28, 2000

                                            DONJOY, L.L.C.

                                            By: /s/ LESLIE H. CROSS
                                               ---------------------------------
                                                Name:  Leslie H. Cross
                                                Title: President & CEO

<PAGE>   16
                            MEMBER CONSENT AND WAIVER

               The undersigned, being a member of DonJoy, L.L.C., a Delaware
limited liability company (the "Company"), hereby waives any rights the
undersigned may have under Section 6 of the Members' Agreement with respect to
the sale by the Seller to the Purchasers of the Purchased Units in accordance
with the provisions of the Unit Purchase Agreement dated as of June 28, 2000, to
which this Member Consent and Waiver is attached (the "Unit Purchase
Agreement"). In addition, the undersigned acknowledges its consent to such sale
for purposes of Section 7.1(a) of the Operating Agreement.

               Capitalized terms used and not otherwise defined in this Member
Consent and Waiver have the meanings ascribed to them in the Unit Purchase
Agreement.

               Dated: June 28, 2000

                                            CB CAPITAL INVESTORS, LLC

                                            BY: CHASE CAPITAL PARTNERS,
                                                AS INVESTMENT MANAGER

                                            By:
                                               ---------------------------------
                                                Name:
                                                Title:

<PAGE>   17
                            MEMBER CONSENT AND WAIVER

               The undersigned, being a member of DonJoy, L.L.C., a Delaware
limited liability company (the "Company"), hereby waives any rights the
undersigned may have under Section 6 of the Members' Agreement with respect to
the sale by the Seller to the Purchasers of the Purchased Units in accordance
with the provisions of the Unit Purchase Agreement dated as of June 28, 2000, to
which this Member Consent and Waiver is attached (the "Unit Purchase
Agreement"). In addition, the undersigned acknowledges its consent to such sale
for purposes of Section 7.1(a) of the Operating Agreement.

               Capitalized terms used and not otherwise defined in this Member
Consent and Waiver have the meanings ascribed to them in the Unit Purchase
Agreement.

               Dated: June 28, 2000

                                            DJ INVESTMENT, LLC

                                            BY: FIRST UNION INVESTORS, INC.,
                                                AS MANAGER

                                            By: /s/ MICHELLE D. DILLINGER
                                               ---------------------------------
                                                Name:  Michelle D. Dillinger
                                                Title: Assistant Vice President

<PAGE>   18
                            MEMBER CONSENT AND WAIVER

               The undersigned, being a member of DonJoy, L.L.C., a Delaware
limited liability company (the "Company"), hereby waives any rights the
undersigned may have under Section 6 of the Members' Agreement with respect to
the sale by the Seller to the Purchasers of the Purchased Units in accordance
with the provisions of the Unit Purchase Agreement dated as of June 28, 2000, to
which this Member Consent and Waiver is attached (the "Unit Purchase
Agreement"). In addition, the undersigned acknowledges its consent to such sale
for purposes of Section 7.1(a) of the Operating Agreement.

               Capitalized terms used and not otherwise defined in this Member
Consent and Waiver have the meanings ascribed to them in the Unit Purchase
Agreement.

               Dated: June 28, 2000

                                            DJC, INC.

                                            By: /s/ JEAN-MARC CHAPUS
                                               ---------------------------------
                                                Name:  Jean-Marc Chapus
                                                Title:

<PAGE>   19
                            MEMBER CONSENT AND WAIVER

               The undersigned, being a member of DonJoy, L.L.C., a Delaware
limited liability company (the "Company"), hereby waives any rights the
undersigned may have under Section 6 of the Members' Agreement with respect to
the sale by the Seller to the Purchasers of the Purchased Units in accordance
with the provisions of the Unit Purchase Agreement dated as of June 28, 2000, to
which this Member Consent and Waiver is attached (the "Unit Purchase
Agreement"). In addition, the undersigned acknowledges its consent to such sale
for purposes of Section 7.1(a) of the Operating Agreement.

               Capitalized terms used and not otherwise defined in this Member
Consent and Waiver have the meanings ascribed to them in the Unit Purchase
Agreement.

               Dated: June 28, 2000

                                        TCW/CRESCENT MEZZANINE TRUST II

                                        BY: TCW/CRESCENT MEZZANINE II, L.P.,
                                            AS GENERAL PARTNER OR MANAGING OWNER

                                        BY: TCW/CRESCENT MEZZANINE, L.L.C.,
                                            ITS GENERAL PARTNER

                                        By: /s/ JEAN-MARC CHAPUS
                                           -------------------------------------
                                            Name:  Jean-Marc Chapus
                                            Title: President

<PAGE>   20
                            MEMBER CONSENT AND WAIVER

               The undersigned, being a member of DonJoy, L.L.C., a Delaware
limited liability company (the "Company"), hereby waives any rights the
undersigned may have under Section 6 of the Members' Agreement with respect to
the sale by the Seller to the Purchasers of the Purchased Units in accordance
with the provisions of the Unit Purchase Agreement dated as of June 28, 2000, to
which this Member Consent and Waiver is attached (the "Unit Purchase
Agreement"). In addition, the undersigned acknowledges its consent to such sale
for purposes of Section 7.1(a) of the Operating Agreement.

               Capitalized terms used and not otherwise defined in this Member
Consent and Waiver have the meanings ascribed to them in the Unit Purchase
Agreement.

          Dated: June 28, 2000

                                    TCW LEVERAGED INCOME TRUST II, L.P.

                                    BY: TCW INVESTMENT MANAGEMENT COMPANY, AS
                                        INVESTMENT ADVISOR

                                    BY: TCW/CRESCENT MEZZANINE, L.L.C.,
                                         ITS GENERAL PARTNER

                                        By: /s/ JEAN-MARC CHAPUS
                                           -------------------------------------
                                            Name:  Jean-Marc Chapus
                                            Title: President

                                    BY: TCW (LINC II), L.P.,
                                         AS GENERAL PARTNER

                                    BY: TCW ADVISORS (BERMUDA), LTD.,
                                         AS ITS GENERAL PARTNER

                                    By: /s/ MARK D. SENKPIEL
                                       -----------------------------------------
                                        Name:  Mark D. Senkpiel
                                        Title: Managing Director

<PAGE>   21
                            MEMBER CONSENT AND WAIVER

               The undersigned, being a member of DonJoy, L.L.C., a Delaware
limited liability company (the "Company"), hereby waives any rights the
undersigned may have under Section 6 of the Members' Agreement with respect to
the sale by the Seller to the Purchasers of the Purchased Units in accordance
with the provisions of the Unit Purchase Agreement dated as of June 28, 2000, to
which this Member Consent and Waiver is attached (the "Unit Purchase
Agreement"). In addition, the undersigned acknowledges its consent to such sale
for purposes of Section 7.1(a) of the Operating Agreement.

               Capitalized terms used and not otherwise defined in this Member
Consent and Waiver have the meanings ascribed to them in the Unit Purchase
Agreement.

           Dated: June 28, 2000

                                     CRESCENT/MACH I PARTNERS, L.P.

                                     BY: TCW ASSET MANAGEMENT
                                         COMPANY, AS PORTFOLIO MANAGER AND AS
                                         ATTORNEY-IN-FACT FOR THE PARTNERSHIP

                                        By: /s/ JEAN-MARC CHAPUS
                                           -------------------------------------
                                            Name:  Jean-Marc Chapus
                                            Title: Managing Director<PAGE>   1
                                                                    EXHIBIT 4.10

                              AMENDED AND RESTATED
                            SECURED PROMISSORY NOTE

$210,541.11                                                   New York, New York
                                                Originally Issued: June 30, 1999
                                             Amended and Restated: June 28, 2000

        SECTION 1.GENERAL.

               (a) For value received, Michael R. McBrayer (the "Payor") hereby
promises to pay in cash to the order of DonJoy, L.L.C., a Delaware limited
liability company, or its successors and assigns (the "Payee"), the principal
amount of TWO HUNDRED TEN THOUSAND FIVE HUNDRED FORTY ONE DOLLARS AND ELEVEN
CENTS ($210,541.11) or such greater or lesser principal amount which may be
outstanding hereunder (including as a result of the exercise of the PIK Option),
on June 30, 2006 (including any date upon which the Payor actually repays the
obligations hereunder, the "Maturity Date"). All payments hereunder shall be
made in such coin or currency of the United States of America as at the time of
payment shall be legal tender therein for the payment of public and private
debts. The Payor shall pay interest on June 30 of each calendar year (the
"Interest Payment Date"), commencing June 30, 2001, and on the Maturity Date,
payable in cash (unless the Payor elects to exercise the PIK Option in the
manner set forth below), on the unpaid balance of the principal amount of this
Note at the rate of 5.30% from the date hereof through and including the
Maturity Date. Interest hereunder shall accrue on a daily basis, computed on the
basis of a 360-day year and the actual number of days elapsed. Notwithstanding
the foregoing, the Payor shall have the option on any Interest Payment Date to
pay the interest due on such date (the "Scheduled Interest Payment") by electing
(the "PIK Option") to increase the principal amount due under this Note by the
amount of such Scheduled Interest Payment, whereupon, immediately thereafter,
the principal amount of this Note shall be increased by the amount of such
Scheduled Interest Payment and interest thereafter shall accrue on the principal
amount of this Note as so increased. The principal of, and interest on, this
Note shall be payable by wire transfer of immediately available funds to the
account of the Payee or by check payable to the Payee.

               (b) This Amended and Restated Promissory Note (this "Note") is
and amendment, restatement and renewal of the Promissory Note dated June 30,
1999 in the original principal amount of $200,000 which was executed and
delivered by the Payor to the Payee on June 30, 1999 (the "Original Note"). The
original principal amount of this Note ($210,541.11) represents the sum of (i)
the unpaid principal amount on the date hereof of the Original Note ($200,000)
and (ii) the accrued and unpaid interest on such unpaid principal amount on the
date hereof ($10,541.11). Upon execution and delivery of this Note, a copy of
the Original Note shall be attached hereto and marked "Amended, restated,
renewed and reevidenced by a promissory note dated June 28, 2000, which is
substituted herefor."

        SECTION 2.PREPAYMENT. The Payor may prepay the principal amount due
under this Note in whole or in part at any time without premium or penalty,
provided that such prepayment is accompanied by the payment of interest accrued
through the date of such prepayment.

<PAGE>   2
        SECTION 3. EVENTS OF DEFAULT.

               (a) Definitions. In each case of the happening of the following
events (each of which is an "Event of Default"):

                      (i) if a default occurs in the payment of any premium,
        installment of, principal of, interest on, or other obligation with
        respect to, this Note, whether at the due date thereof or upon
        acceleration thereof, and such default shall continue for more than ten
        (10) days after notice thereof from the Payee;

                      (ii) if the Payor shall (1) apply for or consent to the
        appointment of a receiver, trustee, custodian or liquidator of his
        property, (2) admit in writing his inability to pay his debts as they
        mature, (3) make a general assignment for the benefit of creditors, or
        (4) file a voluntary petition in bankruptcy, or a petition or an answer
        seeking reorganization or an arrangement with creditors, or to take
        advantage of any bankruptcy, reorganization, insolvency, readjustment of
        debt, dissolution or liquidation laws or statutes, or an answer
        admitting the material allegations of a petition filed against him in
        any proceeding under any such law; or

                      (iii) there shall be filed against the Payor an
        involuntary petition seeking the appointment of a receiver, trustee,
        custodian or liquidator of the Payor or a substantial part of his
        assets, or an involuntary petition under any bankruptcy, reorganization
        or insolvency law of any jurisdiction, whether now or hereafter in
        effect (any of the foregoing petitions being hereinafter referred to as
        an "Involuntary Petition") and such Involuntary Petition shall not have
        been dismissed within sixty (60) days after it was filed;

then, upon each and every such Event of Default and at any time thereafter
during the continuance of such Event of Default, at the election of the Payee,
this Note shall immediately become due and payable, both as to principal and
interest (including any deferred interest and any accrued and unpaid interest),
without presentment, demand, or protest, all of which are hereby expressly
waived, anything contained herein or other evidence of such indebtedness to the
contrary notwithstanding (except in the case of an Event of Default under
paragraphs (ii) or (iii) of this Section 3(a), in which event such indebtedness
shall automatically become due and payable).

               (b) Remedies on Default, Etc. In case any one or more Events of
Default shall occur and be continuing and acceleration of this Note shall have
occurred, the Payee may, inter alia, proceed to protect and enforce its rights
by an action at law, suit in equity or other appropriate proceeding, whether for
the specific performance of any agreement contained in this Note, or for an
injunction against a violation of any of the terms hereof or thereof or in and
of the exercise of any power granted hereby or thereby or by law. No right
conferred upon the Payee hereby shall be exclusive of any other right referred
to herein or now or hereafter available at law, in equity, by statute or
otherwise.

        SECTION 4. ACCELERATION. In each case of the happening of the following
events (each of which is an "Acceleration Event"):

                                       2
<PAGE>   3
                      (i) the termination of the Payor's employment with the
        Payee or any of its Affiliates either as a result of the Payor's
        Resignation (as such term is defined in the Employment Agreement dated
        as of June 30, 1999 (the "Employment Agreement") between the Payor and
        DJ Orthopedics, LLC) or Termination for Cause (as such term is defined
        in the Employment Agreement); or

                      (ii) the occurrence of any event, or series of events
        pursuant to which Chase DJ Partners, LLC and/or its affiliates shall
        cease to beneficially own and/or control (i) at least 20% of the issued
        and outstanding equity interests of the Payee or (ii) all or
        substantially all of the assets of the Payee or any of its subsidiaries;

then, upon each such Event of Acceleration and at any time thereafter, at the
election of the Payee, this Note shall immediately become due and payable, both
as to principal and interest (including any deferred interest and any accrued
and unpaid interest), without presentment, demand or protest, all of which are
hereby expressly waived, anything contained herein or other evidence of such
indebtedness to the contrary notwithstanding.

        SECTION 5. DEFENSES. The obligations of the Payor under this Note shall
not be subject to reduction, limitation, impairment, termination, defense,
set-off, counterclaim or recoupment for any reason.

        SECTION 6. REPLACEMENT OF NOTES. Upon receipt by the Payor of evidence
satisfactory to him of the loss, theft, destruction, or mutilation of this Note,
and (in case of loss, theft or destruction) of an indemnity reasonably
satisfactory to him, and upon surrender and cancellation of this Note, if
mutilated, the Payor will deliver a new Note of like tenor in lieu of this Note.
Any Note delivered in accordance with the provisions of this Section 6 shall be
dated as of the date of this Note.

        SECTION 7. EXTENSION OF MATURITY. Should the principal of or interest on
this Note become due and payable on other than a business day, the maturity date
thereof shall be extended to the next succeeding business day, and, in the case
of principal, interest shall be payable thereon at the rate per annum herein
specified during such extension. For the purposes of this Note, a business day
shall be any day that is not a Saturday, Sunday, or legal holiday in the State
of New York.

        SECTION 8. ATTORNEYS' AND COLLECTION FEES. Should the indebtedness
evidenced by this Note or any part hereof be collected at law or in equity or in
bankruptcy, receivership or other court proceedings, or this Note be placed in
the hands of attorneys for collection, the Payor agrees to pay, in addition to
principal and interest due and payable hereon, all costs of collection,
including reasonable attorneys' fees and expenses, incurred by the Payee in
collecting or enforcing this Note.

        SECTION 9. WAIVERS. The Payor hereby waives presentment, demand for
payment, notice of dishonor, notice of protest and all other notices or demands
in connection with the delivery, acceptance, performance or default of this
Note.

                 No delay by the Payee in exercising any power or right
hereunder shall operate as

                                       3
<PAGE>   4
a waiver of any power or right, nor shall any single or partial exercise of any
power or right preclude other or further exercise thereof, or the exercise of
any other power or right hereunder or otherwise; and no waiver whatsoever or
modification of the terms hereof shall be valid unless set forth in writing by
the Payee and then only to the extent set forth therein.

        SECTION 10. RECOURSE. The obligations of the Payor under this Note are
secured as set forth in the Amended and Restated Pledge Agreement, dated as of
the date hereof, between the Payee and the Payor, a copy of which is attached
hereto and incorporated herein as Exhibit A (the "Pledge Agreement"). The
Payee's recourse on a default under this Note will be to first fully exercise
its remedies under the Pledge Agreement with respect to the Pledged Securities
(as such term is defined therein), before the Payor will be liable for any
deficiency remaining after such a foreclosure and application of the proceeds.

        SECTION 11. AMENDMENTS AND WAIVERS. No provision of this Note may be
amended or waived without the express written consent of both the Payor and the
Payee.

        SECTION 12. GOVERNING LAW. This Note is made and delivered in, and shall
be governed by and construed in accordance with the laws of, the State of New
York (without giving effect to principles of conflicts of laws).

                                    * * * *

                                       4
<PAGE>   5
               IN WITNESS WHEREOF, the Payor has duly executed and delivered
this Amended and Restated Secured Promissory Note as of the date first written
above.

                                            /s/ MICHAEL R. MCBRAYER
                                            ------------------------
                                            Michael R. McBrayer

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