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        <ProgramServicesAmt>186492</ProgramServicesAmt>
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        <EOYAmt>7895721</EOYAmt>
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      <AccountsPayableAccrExpnssGrp>
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      <GrantsPayableGrp>
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        <EOYAmt>4600000</EOYAmt>
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      <TotalLiabilitiesGrp>
        <BOYAmt>4600000</BOYAmt>
        <EOYAmt>5386728</EOYAmt>
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      <OrganizationFollowsSFAS117Ind>X</OrganizationFollowsSFAS117Ind>
      <UnrestrictedNetAssetsGrp>
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        <EOYAmt>2508993</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
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        <EOYAmt>2508993</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>7895721</EOYAmt>
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      <ReconcilationRevenueExpnssAmt>2390793</ReconcilationRevenueExpnssAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>false</AccountantCompileOrReviewInd>
      <FSAuditedInd>false</FSAuditedInd>
      <FederalGrantAuditRequiredInd>false</FederalGrantAuditRequiredInd>
    </IRS990>
    <IRS990ScheduleB documentId="00000002">
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        <ContributorNum>RESTRICTED</ContributorNum>
        <ContributorBusinessName>
          <BusinessNameLine1>RESTRICTED</BusinessNameLine1>
        </ContributorBusinessName>
        <ContributorUSAddress>
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          <AddressLine2>RESTRICTED</AddressLine2>
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          <State>RESTRICTED</State>
          <ZIPCode>RESTRICTED</ZIPCode>
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        <TotalContributionsAmt>RESTRICTED</TotalContributionsAmt>
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    <IRS990ScheduleC documentId="00000003">
      <SubstantiallyAllDuesNondedInd>false</SubstantiallyAllDuesNondedInd>
      <OnlyInHouseLobbyingInd>true</OnlyInHouseLobbyingInd>
      <AgreeCarryoverPriorYearInd>false</AgreeCarryoverPriorYearInd>
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        <DepreciationAmt>59181</DepreciationAmt>
        <BookValueAmt>103542</BookValueAmt>
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      <OtherLandBuildingsGrp>
        <OtherCostOrOtherBasisAmt>600000</OtherCostOrOtherBasisAmt>
        <DepreciationAmt>200000</DepreciationAmt>
        <BookValueAmt>400000</BookValueAmt>
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      <TotalBookValueLandBuildingsAmt>503542</TotalBookValueLandBuildingsAmt>
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      <GrantRecordsMaintainedInd>true</GrantRecordsMaintainedInd>
      <RecipientTable>
        <RecipientBusinessName>
          <BusinessNameLine1Txt>AO North America Charitable Foundation</BusinessNameLine1Txt>
        </RecipientBusinessName>
        <USAddress>
          <AddressLine1Txt>1700 Russell Road</AddressLine1Txt>
          <CityNm>Paoli</CityNm>
          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>19301</ZIPCd>
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        <RecipientEIN>232701788</RecipientEIN>
        <IRCSectionDesc>501(c)(3)</IRCSectionDesc>
        <CashGrantAmt>7782061</CashGrantAmt>
        <ValuationMethodUsedDesc>FMV</ValuationMethodUsedDesc>
        <NonCashAssistanceDesc>0</NonCashAssistanceDesc>
        <PurposeOfGrantTxt>Fellowships and Research</PurposeOfGrantTxt>
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      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt I Line 2</FormAndLineReferenceDesc>
        <ExplanationTxt>At every AONA Inc. Board meeting, which occur twice a year the Executive Director of AONACF and Controller provide detailed reports regarding the use of the funds that AONA, Inc has granted to AONACF, the results achieved. They also provide projections regarding the use of balance of year funds and the expected outcomes.</ExplanationTxt>
      </SupplementalInformationDetail>
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      <SupplementalNonqualRtrPlanInd>false</SupplementalNonqualRtrPlanInd>
      <EquityBasedCompArrngmInd>false</EquityBasedCompArrngmInd>
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        <PersonNm>MICHAEL LEWIS</PersonNm>
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        <TotalCompensationFilingOrgAmt>189069</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>NANCY HOLMES</PersonNm>
        <BaseCompensationFilingOrgAmt>190958</BaseCompensationFilingOrgAmt>
        <BonusFilingOrganizationAmount>47879</BonusFilingOrganizationAmount>
        <DeferredCompensationFlngOrgAmt>13973</DeferredCompensationFlngOrgAmt>
        <TotalCompensationFilingOrgAmt>252810</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>ANDREA MC CLIMON</PersonNm>
        <BaseCompensationFilingOrgAmt>155156</BaseCompensationFilingOrgAmt>
        <BonusFilingOrganizationAmount>33302</BonusFilingOrganizationAmount>
        <DeferredCompensationFlngOrgAmt>11353</DeferredCompensationFlngOrgAmt>
        <TotalCompensationFilingOrgAmt>199811</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>JANE MIHELIC</PersonNm>
        <BaseCompensationFilingOrgAmt>134421</BaseCompensationFilingOrgAmt>
        <BonusFilingOrganizationAmount>26229</BonusFilingOrganizationAmount>
        <DeferredCompensationFlngOrgAmt>9836</DeferredCompensationFlngOrgAmt>
        <TotalCompensationFilingOrgAmt>170486</TotalCompensationFilingOrgAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
      <RltdOrgOfficerTrstKeyEmplGrp>
        <PersonNm>DON WEBB</PersonNm>
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        <BonusFilingOrganizationAmount>27691</BonusFilingOrganizationAmount>
        <DeferredCompensationFlngOrgAmt>10384</DeferredCompensationFlngOrgAmt>
        <TotalCompensationFilingOrgAmt>179994</TotalCompensationFilingOrgAmt>
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      <BusTrInvolveInterestedPrsnGrp>
        <NameOfInterested>
          <BusinessName>
            <BusinessNameLine1Txt>AO North America Charitable Foundation</BusinessNameLine1Txt>
          </BusinessName>
        </NameOfInterested>
        <RelationshipDescriptionTxt>Shared Management</RelationshipDescriptionTxt>
        <TransactionAmt>762723</TransactionAmt>
        <TransactionDesc>Purchase of Equipment and Software</TransactionDesc>
        <SharingOfRevenuesInd>false</SharingOfRevenuesInd>
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    <IRS990ScheduleO documentId="00000008" softwareId="14000261">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Form 990 is reviewed by the Executive Director and Treasurer and compared to meeting notes and activity for the year to insure accuracy of the return.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>AONA annually shares the policy with officers, directors, surgeon volunteers and employees. We require that all indicate in writing that they have reviewed and understand the policy. All are required to disclose in writing any potential conflicts. AONA goes through a process to resolve any potential conflicts. This process includes elevation of issues to the Board of Directors if necessary.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 6</FormAndLineReferenceDesc>
        <ExplanationTxt>AO NORTH AMERICA INC. IS A MEMBERSHIP ORGANIZATION. ANY MEMBER OF AOTRAUMA INTERNATIONAL, AOSPINE INTERNATIONAL, AOCMF INTERNATIONAL AND/OR AOVET INTERNATIONAL WHO IS IN GOOD STANDING AND WHO RESIDES IN NORTH AMERICA, AND ANY HONORARY MEMBER, SHALL BE A MEMBER. THE BOARD OF DIRECTORS MAY, AT ITS DISCRETION, DESIGNATE ANY PERSON OR BUSINESS AS AN "HONORARY MEMBER" BASED UPON THE CONTRIBUTION SUCH PERSON OR BUSINESS HAS MADE TO THE CORPORATION, AO NORTH AMERICA CHARITABLE FOUNDATION (FORMERLY KNOWN AS THE AO NORTH AMERICA, INC.), OR THE FORMER ENTITY KNOWN AS AOSPINE NORTH AMERICA, INC. AND/OR TO THE MISSION OF SUCH ENTITIES.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>A VOTING MEMBER IS ANY MEMBER WHO CURRENTLY SERVES ON (I) THE BOARD OF DIRECTORS, (II) THE BOARD OF DIRECTORS OF AO NORTH AMERICA CHARITABLE FOUNDATION OR (III) A BOARD OR COMMITTEE OF A CLINICAL DIVISION OF THE CORPORATION OR OF AO NORTH AMERICA CHARITABLE FOUNDATION.THE VOTING MEMBERS OF THE RESPECTIVE CLINICAL DIVISIONS SHALL SUBMIT TO THE RESPECTIVE CLINICAL DIVISION NOMINATING COMMITTEES NAMES OF SENIOR MEMBERS WHO ARE IN GOOD STANDING AND WHO ARE INTERESTED IN SERVING ON THE BOARD OF DIRECTORS. ONCE THE "REVIEW AND EVALUATION" PROCESS IS COMPLETED, EACH CLINICAL DIVISION NOMINATING COMMITTEE SHALL RECOMMEND TO THE VOTING MEMBERS OF THEIR RESPECTIVE CLINICAL DIVISIONS A SLATE OF SENIOR MEMBERS WHO ARE WILLING TO REPRESENT EACH SUCH CLINICAL DIVISION ON THE BOARD OF DIRECTORS. THE VOTING MEMBERS OF THE RESPECTIVE CLINICAL DIVISIONS SHALL THEN ELECT ONE (1) SENIOR MEMBER ASSOCIATED WITH THEIR RESPECTIVE CLINICAL DIVISION TO SERVE ON THE BOARD OF DIRECTORS.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Pt VI, Line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>As indicated above, voting member elect directors to the Board. Voting members also attend annual and special meetings of the members where other business will be transacted.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, Line 24f</FormAndLineReferenceDesc>
        <ExplanationTxt>TEMPORARY LABOR 88154. 79339. 8815. 0.</ExplanationTxt>
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    </IRS990ScheduleO>
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          <StateAbbreviationCd>PA</StateAbbreviationCd>
          <ZIPCd>19301</ZIPCd>
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        <PublicCharityStatusTxt>PF</PublicCharityStatusTxt>
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      <ReceiptOfIntAnntsRntsRyltsInd>false</ReceiptOfIntAnntsRntsRyltsInd>
      <GiftGrntOrCapContriToOthOrgInd>true</GiftGrntOrCapContriToOthOrgInd>
      <GiftGrntCapContriFromOthOrgInd>true</GiftGrntCapContriFromOthOrgInd>
      <LoansOrGuaranteesToOtherOrgInd>false</LoansOrGuaranteesToOtherOrgInd>
      <LoansOrGuaranteesFromOthOrgInd>false</LoansOrGuaranteesFromOthOrgInd>
      <DivRelatedOrganizationInd>false</DivRelatedOrganizationInd>
      <AssetSaleToOtherOrgInd>false</AssetSaleToOtherOrgInd>
      <AssetPurchaseFromOtherOrgInd>true</AssetPurchaseFromOtherOrgInd>
      <AssetExchangeInd>false</AssetExchangeInd>
      <RentalOfFacilitiesToOthOrgInd>false</RentalOfFacilitiesToOthOrgInd>
      <RentalOfFcltsFromOthOrgInd>false</RentalOfFcltsFromOthOrgInd>
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      <PerformOfServicesByOtherOrgInd>false</PerformOfServicesByOtherOrgInd>
      <SharingOfFacilitiesInd>true</SharingOfFacilitiesInd>
      <PaidEmployeesSharingInd>true</PaidEmployeesSharingInd>
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