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      <FootnoteTextInd>X</FootnoteTextInd>
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        <FormAndLineReferenceDesc>PART X, LINE 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ASSOCIATION FOLLOWS THE PROVISIONS OF ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES UNDER THE INCOME TAXES TOPIC OF THE CODIFICATION. THE CODIFICATION REQUIRES THE ASSOCIATION'S EVALUATION OF TAX POSITIONS, WHICH INCLUDE MAINTAINING ITS TAX-EXEMPT STATUS AND THE TAXABILITY OF ANY UNRELATED BUSINESS INCOME, AND DOES NOT ALLOW RECOGNITION OF TAX POSITIONS WHICH DO NOT MEET A "MORE-LIKELY-THAN-NOT" THRESHOLD OF BEING SUSTAINED BY THE APPLICABLE TAX AUTHORITY. MANAGEMENT DOES NOT BELIEVE IT TOOK ANY TAX POSITIONS THAT WOULD NOT MEET THIS THRESHOLD.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 3</FormAndLineReferenceDesc>
        <ExplanationTxt>THE DAY TO DAY OPERATIONS OF THE ASSOCIATION ARE HANDLED UNDER A CONTRACT BETWEEN THE ASSOCIATION AND DATA TRACE MANAGEMENT SERVICES, LLC.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 6</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ASSOCIATION IS A MEMBERSHIP ORGANIZATION, THE MEMBERS WORK TO FURTHER THE ORGANIZATION'S MISSION TO DEVELOP AND FOSTER THE SCIENCE OF MEDICINE IN THE SPECIALTY OF ORTHOPAEDIC SURGERY.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7A</FormAndLineReferenceDesc>
        <ExplanationTxt>MEMBERS OF THE ASSOCIATION VOTE ANNUALLY ON THE SLATE OF PROPOSED BOARD MEMBERS.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION A, LINE 7B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE MEMBERS ANNUALLY VOTE ON A SLATE OF OFFICERS FOR ELECTION, AND IF APPLICABLE IN A GIVEN YEAR WOULD ALSO VOTE ON ANY BY-LAW CHANGES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 11B</FormAndLineReferenceDesc>
        <ExplanationTxt>THE FORM 990 WAS REVIEWED BY THE MANAGEMENT COMPANY PRIOR TO BEING SIGNED BY A BOARD MEMBER.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION B, LINE 12C</FormAndLineReferenceDesc>
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      <SupplementalInformationDetail>
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        <ExplanationTxt>OFFICERS AND BOARD MEMBERS DO NOT RECEIVE ANY COMPENSATION.</ExplanationTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>FORM 990, PART VI, SECTION C, LINE 19</FormAndLineReferenceDesc>
        <ExplanationTxt>THE ORGANIZATION MAKES ITS GOVERNING DOCUMENTS, CONFLICT OF INTEREST POLICY AND FINANCIAL STATEMENTS AVAILABLE TO THE PUBLIC UPON REQUEST.</ExplanationTxt>
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</Return>