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      <BuildingsGrp />
      <LeaseholdImprovementsGrp />
      <EquipmentGrp />
      <OtherLandBuildingsGrp />
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>ASC 740 Footnote</FormAndLineReferenceDesc>
        <ExplanationTxt>Management has evaluated their income tax positions under the guidance included in ASC 740. Based on their review, management has not identified any material uncertain tax positions to be recorded or disclosed in the financial statements.</ExplanationTxt>
      </SupplementalInformationDetail>
    </IRS990ScheduleD>
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        </RecipientBusinessName>
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          <CityNm>Rosemont</CityNm>
          <StateAbbreviationCd>IL</StateAbbreviationCd>
          <ZIPCd>60018</ZIPCd>
        </USAddress>
        <RecipientEIN>363166049</RecipientEIN>
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        <PurposeOfGrantTxt>Education</PurposeOfGrantTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>PART I, LINE 2</FormAndLineReferenceDesc>
        <ExplanationTxt>CHAIRMAN OF BOARD OF TRUSTEES ATTENDS BOARD OF DIRECTORS MEETINGS OF ARTHROSCOPY ASSOCIATION OF NORTH AMERICA AND IS ABLE TO MONITOR THE ADMINISTRATION OF THE GRANT THROUGH THE FINANCIAL PRESENTATION AT SUCH MEETINGS.</ExplanationTxt>
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      <InitialContractExceptionInd>false</InitialContractExceptionInd>
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        <FormAndLineReferenceDesc>Part J, Line 3</FormAndLineReferenceDesc>
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      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
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        <ExplanationTxt>EACH MEETING BEGINS WITH AFFIRMATION OR EDITING OF WRITTEN INFORMATION SUPPLIED TO THE FOUNDATION THROUGH THE AAOS WEBSITE REGARDING DECLARED CONFLICTS OF INTEREST.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
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        <ExplanationTxt>GOVERNING DOCUMENTS (BYLAWS), CONFLICT OF INTEREST POLICY, AND ANNUAL FINANCIAL STATEMENTS ARE AVAILABLE UPON REQUEST.</ExplanationTxt>
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    </IRS990ScheduleO>
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      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
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</Return>