Liabilities / Assets
35th percentile
Higher debt load relative to assets than 35% of similar nonprofits.
Precomputed percentiles for this filing year versus similar nonprofits in the same peer cohort.
Liabilities / Assets
35th percentile
Higher debt load relative to assets than 35% of similar nonprofits.
Liabilities / Revenue
65th percentile
Higher debt load relative to revenue than 65% of similar nonprofits.
Net Margin
59th percentile
Higher net margin than 59% of similar nonprofits.
Top Officer Pay
21st percentile
Higher top officer pay than 21% of similar nonprofits.
Top officer pay equals 0.0% of source-year revenue.
Asset Growth
79th percentile
Faster asset growth than 79% of similar nonprofits.
Revenue Growth
67th percentile
Faster revenue growth than 67% of similar nonprofits.
Assets
Up$5,568,414
Up $788,111 (+16%) from 2018
Net Assets
Up$5,242,000
Up $769,009 (+17%) from 2018
Liabilities
Up$326,414
Up $19,102 (+6.2%) from 2018
Revenue
Up$1,007,519
Up $101,170 (+11%) from 2018
Expenses
Up$948,404
Up $122,180 (+15%) from 2018
Net Income
Down$59,115
Down $21,010 (-26%) from 2018
To advance knowledge of hip disorders, promote evidence-based treatment, and refine surgery of the hip in order to improve the lives of patients.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $4,054,578 | $4,946,640 | ▲ $892,062 |
| Cash and Non-Interest-Bearing Accounts | $655,293 | $378,541 | ▼ $276,752 |
| Prepaid Expenses and Deferred Charges | $21,882 | $54,048 | ▲ $32,166 |
| Accounts Receivable | $48,550 | $39,185 | ▼ $9,365 |
| Total Assets | $4,780,303 | $5,568,414 | ▲ $788,111 |
| Other Assets Total | $0 | $150,000 | ▲ $150,000 |
| Liabilities | |||
| Deferred Revenue | $276,650 | $264,435 | ▼ $12,215 |
| Accounts Payable and Accrued Expenses | $30,662 | $61,979 | ▲ $31,317 |
| Total Liabilities | $307,312 | $326,414 | ▲ $19,102 |
| Net Assets / Fund Balance | |||
| Net Assets With Donor Restrictions | $3,345,388 | $3,868,701 | ▲ $523,313 |
| Net Assets Without Donor Restrictions | $1,127,603 | $1,373,299 | ▲ $245,696 |
| Total Net Assets Fund Balance | $4,472,991 | $5,242,000 | ▲ $769,009 |
| Total Liabilities and Net Assets / Fund Balance | $4,780,303 | $5,568,414 | ▲ $788,111 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2019 | $180,480 | - | ▲ $33,124 | - | $213,604 |
| 2018 | $189,386 | - | ▼ $8,906 | - | $180,480 |
| 2017 | $165,310 | - | ▲ $24,076 | - | $189,386 |
| 2016 | $154,491 | - | ▲ $10,819 | - | $165,310 |
| 2015 | $157,677 | $1,320 | ▼ $4,506 | - | $154,491 |
| Name | Title |
|---|---|
| Adolph V Lombardi Jr Facs Md | Committee Chair |
| Craig J Della Valle Md | Committee Chair |
| Richard Iorio Md | Committee Chair |
| William a Jiranek Md | Committee Chair |
| Douglas Padgett Md | Imm Past President |
| Joshua J Jacobs Md | President |
| Robert L Barrack Md | 1st Vice President |
| C Anderson Engh Jr Md | 2nd Vice President |
| Scott M Sporer | Member at Large |
| Don S Garbuz Md | Secretary |
| Jay R Lieberman Md | Treasurer |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Aaos | Management | 9400 W HIGGINS ROAD, Rosemont, IL 60018 | $176,508 |
| Line Item | Amount |
|---|---|
| Other Expenses | $895,404 |
| Grants and Similar Amounts Paid | $53,000 |
| Professional Fundraising Fees | $0 |
| Salaries, Compensation, and Employee Benefits | $0 |
| Total Fundraising Expense | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Conferences and Meetings | $529,509 | - | - | $529,509 |
| Fees for Services Management | - | $176,508 | - | $176,508 |
| Fees for Service Investment Mgmnt Fees | - | $34,735 | - | $34,735 |
| Grants to Domestic Individuals | $28,000 | - | - | $28,000 |
| Grants to Domestic Orgs | $25,000 | - | - | $25,000 |
| Fees for Services Accounting | - | $6,500 | - | $6,500 |
| Office Expenses | - | $3,761 | - | $3,761 |
| Insurance | - | $2,760 | - | $2,760 |
| Other Expenses | $1,000 | $13,246 | - | $1,000 |
| Fees for Services Legal | - | $438 | - | $438 |
| Total Functional Expenses | $710,456 | $237,948 | $0 | $948,404 |
| Line Item | Amount |
|---|---|
| Total Expenses per Form 990 | $948,404 |
| Expenses per Audited Statements | $913,669 |
| Total Expenses per Audited Statements | $913,669 |
| Expenses Not Reported on Financial Statements | $34,735 |
| Expenses Not Reported on Form 990 | $0 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| New York University School of Medicine | New York, NY | 501c3 | Research | $25,000 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
“Management services are provided by american academy of orthopaedic surgeons.”
“The organization is composed of members, including active, adjunct, senior, senior adjunct, honorary and emeritus members.”
“Voting members have the right to elect the board.”
“The form 990 is provided to the board of directors for review prior to filing. Any questions raised as a result of the board review are resolved prior to the filing of the form.”
“The disclosures are managed and reinforced by aaos, via the online disclosure mechanism.”
“The governing documents are made available to the public upon request.”
“The society's endowment funds are to be held in perpetuity and investment income is to be utilized for the society's mission.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 30662 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 61979 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 48550 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 39185 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | TO ADVANCE KNOWLEDGE OF HIP DISORDERS, PROMOTE EVIDENCE-BASED TREATMENT, AND REFINE SURGERY OF THE HIP IN ORDER TO IMPROVE THE LIVES OF PATIENTS. |
| IRS990/AllOtherContributionsAmt | 0 | 111015 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | ANNA GREENE |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 8473844233 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 9400 W HIGGINS ROAD STE 500 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | ROSEMONT |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 60018 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 655293 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 378541 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 1 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 0 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 529509 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 529509 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 176508 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 9400 W HIGGINS ROAD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | ROSEMONT |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 60018 |
| IRS990/ContractorCompensationGrp/ContractorName/PersonNm | 0 | AAOS |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | MANAGEMENT |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 111015 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 53000 |
| IRS990/CYInvestmentIncomeAmt | 0 | 113997 |
| IRS990/CYOtherExpensesAmt | 0 | 895404 |
| IRS990/CYOtherRevenueAmt | 0 | 2598 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 779909 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 59115 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/CYTotalExpensesAmt | 0 | 948404 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1007519 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 276650 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 264435 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 1 |
| IRS990/Desc | 0 | MEETINGS FOR ORTHOPAEDIC SURGEONS AND ENGINEERS WHO HAVE AN INTEREST IN THE HIP SURGERY AND FULL DAY EDUCATIONAL PROGRAM DIVIDED INTO SYMPOSIA AND A SESSION OF AWARD PAPERS. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 3345388 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 3868701 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 529509 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 6500 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 6500 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 438 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 438 |
| IRS990/FeesForServicesManagementGrp/ManagementAndGeneralAmt | 0 | 176508 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 176508 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 34735 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 34735 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | JOSHUA J JACOBS MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | ROBERT L BARRACK MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | C ANDERSON ENGH JR MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | DON S GARBUZ MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | JAY R LIEBERMAN MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | DOUGLAS PADGETT MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | WILLIAM A JIRANEK MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | CRAIG J DELLA VALLE MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | ADOLPH V LOMBARDI JR FACS MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | SCOTT M SPORER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | RICHARD IORIO MD |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | 1ST VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | 2ND VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | IMM PAST PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | COMMITTEE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | COMMITTEE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | COMMITTEE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | MEMBER AT LARGE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | COMMITTEE CHAIR |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1968 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 11 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 28000 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 28000 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 25000 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 25000 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 1007519 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 0 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 11 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 2760 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 2760 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 113997 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 113997 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 4054578 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 4946640 |
| IRS990/IRPDocumentCnt | 0 | 16 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | IL |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 1 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | TO ADVANCE KNOWLEDGE OF HIP DISORDERS, PROMOTE EVIDENCE-BASED TREATMENT, AND REFINE SURGERY OF THE HIP IN ORDER TO IMPROVE THE LIVES OF PATIENTS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 4472991 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 5242000 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 709894 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1127603 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 1373299 |
| IRS990/NoListedPersonsCompensatedInd | 0 | X |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 3761 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 3761 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 0 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 150000 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | BOARD & COMMITTEE |
| IRS990/OtherExpensesGrp/Desc | 1 | TRAVELING FELLOWS |
| IRS990/OtherExpensesGrp/Desc | 2 | MISCELLANEOUS |
| IRS990/OtherExpensesGrp/Desc | 3 | DONATIONS |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 13246 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 69173 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 57774 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 1000 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 69173 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 57774 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 13246 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 1000 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 21882 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 54048 |
| IRS990/PrincipalOfficerNm | 0 | MATHIAS PG BOSTROM |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611430 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 611430 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 813910 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 611430 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 4 | 611430 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | JAMM MEETING |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | SPECIALTY DAY REVENUE |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | MEMBERSHIP DUES |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | SUMMER MEETING |
| IRS990/ProgramServiceRevenueGrp/Desc | 4 | COURSE |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 276485 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 206038 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 186990 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 3 | 41210 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 4 | 35511 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 276485 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 206038 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 186990 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 3 | 41210 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 4 | 35511 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | EXPENSES TO SUPPORT MEMBER MEETINGS. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 69173 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 186990 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | AWARDS TO ORGANIZATIONS TO PROMOTE RESEARCH ON THE FIELD OF ORTHOPAEDIC SURGERY. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 111774 |
| IRS990/ProgSrvcAccomActy3Grp/GrantAmt | 0 | 53000 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 120917 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 28000 |
| IRS990/PYInvestmentIncomeAmt | 0 | 121631 |
| IRS990/PYOtherExpensesAmt | 0 | 798224 |
| IRS990/PYOtherRevenueAmt | 0 | 52579 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 611222 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 80125 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 0 |
| IRS990/PYTotalExpensesAmt | 0 | 826224 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 906349 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 59115 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 0 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 0 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 592919 |
| IRS990/RoyaltiesRevenueGrp/ExclusionAmt | 0 | 2598 |
| IRS990/RoyaltiesRevenueGrp/TotalRevenueColumnAmt | 0 | 2598 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearAmt | 0 | 50000 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus1YearAmt | 0 | 50000 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus2YearsAmt | 0 | 50000 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus3YearsAmt | 0 | 300000 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearMinus4YearsAmt | 0 | 300000 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 750000 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 298005 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 277667 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 238250 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 633250 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 773108 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 2220280 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 116595 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 165597 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 153603 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 143898 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 90206 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 669899 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 592919 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 454472 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 213030 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 190080 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 213064 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 1663565 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 116595 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 165597 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 153603 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 143898 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 90206 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 669899 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.14710 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.14050 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.68820 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.58620 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 3133845 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearAmt | 0 | 50000 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus1YearAmt | 0 | 50000 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus2YearsAmt | 0 | 50000 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus3YearsAmt | 0 | 300000 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus4YearsAmt | 0 | 300000 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 750000 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 890924 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 732139 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 451280 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 823330 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 986172 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 3883845 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 1007519 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 897736 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 604883 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 967228 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 1076378 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 4553744 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/CYEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 180480 |
| IRS990ScheduleD/CYEndwmtFundGrp/EndYearBalanceAmt | 0 | 213604 |
| IRS990ScheduleD/CYEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 33124 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 189386 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 180480 |
| IRS990ScheduleD/CYMinus1YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | -8906 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 165310 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 189386 |
| IRS990ScheduleD/CYMinus2YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 24076 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 154491 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 165310 |
| IRS990ScheduleD/CYMinus3YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | 10819 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/BeginningYearBalanceAmt | 0 | 157677 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/ContributionsAmt | 0 | 1320 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/EndYearBalanceAmt | 0 | 154491 |
| IRS990ScheduleD/CYMinus4YrEndwmtFundGrp/InvestmentEarningsOrLossesAmt | 0 | -4506 |
| IRS990ScheduleD/EndowmentsHeldRelatedOrgInd | 0 | 0 |
| IRS990ScheduleD/EndowmentsHeldUnrelatedOrgInd | 0 | 0 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 34735 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 913669 |
| IRS990ScheduleD/InvestmentExpensesNotIncld2Amt | 0 | 34735 |
| IRS990ScheduleD/InvestmentExpensesNotIncldAmt | 0 | 34735 |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | 709894 |
| IRS990ScheduleD/PrmnntEndowmentBalanceEOYPct | 0 | 0.82720 |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 709894 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 34735 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 972784 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | THE SOCIETY'S ENDOWMENT FUNDS ARE TO BE HELD IN PERPETUITY AND INVESTMENT INCOME IS TO BE UTILIZED FOR THE SOCIETY'S MISSION. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART V, LINE 4: |
| IRS990ScheduleD/TermEndowmentBalanceEOYPct | 0 | 0.17280 |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 0 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 948404 |
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Displayed year
2019 • Form 990Detailed filing. Detailed filing data is available for this year.