Liabilities / Assets
32nd percentile
Higher debt load relative to assets than 32% of similar nonprofits.
EIN 23-7348162 • 501(c)3 • Schaumburg, IL
Profile
To advance knowledge of hip disorders, promote evidence-based treatment, and refine surgery of the hip in order to improve the lives of patients.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
32nd percentile
Higher debt load relative to assets than 32% of similar nonprofits.
Liabilities / Revenue
61st percentile
Higher debt load relative to revenue than 61% of similar nonprofits.
Net Margin
75th percentile
Higher net margin than 75% of similar nonprofits.
Top Officer Pay
71st percentile
Higher top officer pay than 71% of similar nonprofits.
Top officer pay equals 17.2% of source-year revenue.
Asset Growth
70th percentile
Faster asset growth than 70% of similar nonprofits.
Revenue Growth
61st percentile
Faster revenue growth than 61% of similar nonprofits.
Assets
Up$7,561,858
Up $810,255 (+12%) from 2023
Liabilities
Up$279,969
Up $69,692 (+33%) from 2023
Net Assets
Up$7,281,889
Up $740,563 (+11%) from 2023
Revenue
Up$1,090,270
Up $128,204 (+13%) from 2023
Expenses
Down$852,982
Down $24,460 (-2.8%) from 2023
Net Income
Up$237,288
Up $152,664 (+180%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
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 | $5,358,934 | $5,972,946 | ▲ $614,012 |
| Intangible Assets | $500,000 | $500,000 | → $0 |
| Cash and Non-Interest-Bearing Accounts | $547,197 | $487,885 | ▼ $59,312 |
| Accounts Receivable | $206,969 | $418,157 | ▲ $211,188 |
| Prepaid Expenses and Deferred Charges | $79,266 | $144,724 | ▲ $65,458 |
| Pledges and Grants Receivable | $15,542 | $3,000 | ▼ $12,542 |
| Total Assets | $6,751,603 | $7,561,858 | ▲ $810,255 |
| Other Assets Total | $43,695 | $35,146 | ▼ $8,549 |
| Liabilities | |||
| Deferred Revenue | $123,275 | $182,182 | ▲ $58,907 |
| Accounts Payable and Accrued Expenses | $40,250 | $59,992 | ▲ $19,742 |
| Other Liabilities | $46,752 | $37,795 | ▼ $8,957 |
| Total Liabilities | $210,277 | $279,969 | ▲ $69,692 |
| Net Assets / Fund Balance | |||
| Net Assets With Donor Restrictions | $4,547,563 | $4,994,896 | ▲ $447,333 |
| Net Assets Without Donor Restrictions | $1,993,763 | $2,286,993 | ▲ $293,230 |
| Total Net Assets Fund Balance | $6,541,326 | $7,281,889 | ▲ $740,563 |
| Total Liabilities and Net Assets / Fund Balance | $6,751,603 | $7,561,858 | ▲ $810,255 |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $286,906 | - | ▲ $21,298 | - | $298,204 |
| 2023 | $232,865 | $24,100 | ▲ $42,441 | - | $286,906 |
| 2022 | $262,333 | $20,210 | ▼ $49,678 | - | $232,865 |
| 2021 | $239,633 | - | ▲ $47,700 | - | $262,333 |
| 2020 | $213,604 | - | ▲ $26,029 | - | $239,633 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Olga Foley | Executive Director | FT | $156,120 | $31,794 | $187,914 |
| Jolanta Tricroce | Education and Meetings Manager | FT | $102,045 | $29,535 | $131,580 |
| Name | Title |
|---|---|
| Matthew P Abdel Md | Committee Chair |
| Paul E Beaule Md | Committee Chair |
| Rafael J Sierra Md | Committee Chair |
| William M Mihalko Md | Committee Chair |
| William a Jiranek Md | Immediate Past President |
| Don S Garbuz Md | President |
| Steven J Macdonald Md | 1st Vice President |
| Mathias Pg Bostrom Md | 2nd Vice President |
| Bryan D Springer Md | 3rd Vice President |
| Keith R Berend Md | Member |
| Michael P Bolognesi Md | Secretary |
| William Macaulay Md | Treasurer |
| Line Item | Amount |
|---|---|
| Other Expenses | $540,368 |
| Salaries, Compensation, and Employee Benefits | $264,614 |
| Grants and Similar Amounts Paid | $48,000 |
| Total Fundraising Expense | $62 |
| Professional Fundraising Fees | $0 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Travel | $119,802 | $82 | - | $119,884 |
| Other Salaries and Wages | $56,816 | $62,446 | - | $119,262 |
| Current Officers, Directors, Trustees, and Key Employees | $51,711 | $26,349 | - | $78,060 |
| Payroll Taxes | $32,669 | $26,730 | - | $59,399 |
| Fees for Services Other | $12,200 | $25,272 | $62 | $37,534 |
| Foreign Grants | $28,000 | - | - | $28,000 |
| Information Technology | $3,882 | $23,840 | - | $27,722 |
| Fees for Service Investment Mgmnt Fees | - | $22,616 | - | $22,616 |
| Occupancy | - | $21,098 | - | $21,098 |
| Other Expenses | $27,773 | $17,626 | - | $17,626 |
| Fees for Services Accounting | - | $16,861 | - | $16,861 |
| Grants to Domestic Individuals | $10,000 | - | - | $10,000 |
| Grants to Domestic Orgs | $10,000 | - | - | $10,000 |
| All Other Expenses | $4,115 | $5,208 | - | $9,323 |
| Pension Plan Contributions | $4,341 | $3,552 | - | $7,893 |
| Office Expenses | $3,461 | $4,295 | - | $7,756 |
| Insurance | - | $4,221 | - | $4,221 |
| Advertising | $1,902 | $1,814 | - | $3,716 |
| Fees for Services Legal | - | $315 | - | $315 |
| Total Functional Expenses | $590,461 | $262,459 | $62 | $852,982 |
| Line Item | Amount |
|---|---|
| Total Expenses per Form 990 | $852,982 |
| Expenses per Audited Statements | $830,366 |
| Total Expenses per Audited Statements | $830,366 |
| Expenses Not Reported on Financial Statements | $22,616 |
| Expenses Not Reported on Form 990 | $0 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Sinai Hospital of Baltimore | Baltimore, MD | 501(c)(3) | Research | $5,000 |
| The Center for Orthopedic and Research Excellence Inc | Phoenix, AZ | N/a | Research | $5,000 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
| Liability | Amount |
|---|---|
| Lease Liability | $37,795 |
“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 the filing. Any questions raised as a result of the board review are resolved prior to the filing of the form.”
“The disclosures are discussed at the board meetings annually.”
“The board reviews and determines the salary of top management officials”
“The governing documents are made available to the public upon request.”
“Other business expenses: program service expenses 4,115. Management and general expenses 5,208. Fundraising expenses 0. Total expenses 9,323.”
“No changes from prior year.”
“RESEARCH AND EDUCATION”
“The society has adopted the provision of asc topic 740, income taxes, relating to the accounting for uncertainty in income taxes. The society files information returns in the u.s. Federal jurisdiction, and the state of illinois. Management is not aware of any uncertain tax positions.”
“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 | 40250 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 59992 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 206969 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 418157 |
| 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/AdvertisingGrp/ManagementAndGeneralAmt | 0 | 1814 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 1902 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 3716 |
| IRS990/AllOtherContributionsAmt | 0 | 129243 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 5208 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 4115 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 9323 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | OLGA FOLEY |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 8476981638 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1515 EAST WOODFIELD ROAD 345 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | SCHAUMBURG |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 60173 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 547197 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 487885 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 0 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 26349 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 51711 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 78060 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 0 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 326793 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 48000 |
| IRS990/CYInvestmentIncomeAmt | 0 | 208376 |
| IRS990/CYOtherExpensesAmt | 0 | 540368 |
| IRS990/CYOtherRevenueAmt | 0 | 33261 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 521840 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 237288 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 264614 |
| IRS990/CYTotalExpensesAmt | 0 | 852982 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 62 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 1090270 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 123275 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 182182 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| 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 | 4547563 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 4994896 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 0 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 422291 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 16861 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 16861 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 315 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 315 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 62 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 25272 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 12200 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 37534 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 22616 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 22616 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignGrantsGrp/ProgramServicesAmt | 0 | 28000 |
| IRS990/ForeignGrantsGrp/TotalAmt | 0 | 28000 |
| 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/AverageHoursPerWeekRt | 11 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| 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/IndividualTrusteeOrDirectorInd | 11 | 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/OfficerInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 7 | 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/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 31794 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 29535 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | WILLIAM MACAULAY MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | WILLIAM A JIRANEK MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | DON S GARBUZ MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | BRYAN D SPRINGER MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | STEVEN J MACDONALD MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | MICHAEL P BOLOGNESI MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | MATHIAS PG BOSTROM MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | PAUL E BEAULE MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | MATTHEW P ABDEL MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | WILLIAM M MIHALKO MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | KEITH R BEREND MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | RAFAEL J SIERRA MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | OLGA FOLEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | JOLANTA TRICROCE |
| 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/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 156120 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 102045 |
| 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/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | IMMEDIATE PAST PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | 3RD VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | 1ST VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | 2ND VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | COMMITTEE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | COMMITTEE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | COMMITTEE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | COMMITTEE CHAIR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | EXECUTIVE DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | EDUCATION AND MEETINGS MANAGER |
| 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/GainOrLossGrp/SecuritiesAmt | 0 | 36221 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 12 |
| IRS990/GrantAmt | 0 | 38000 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 10000 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 10000 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 10000 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 10000 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 1437070 |
| IRS990/GrossReceiptsAmt | 0 | 2491119 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 12 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 2 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 23840 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 3882 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 27722 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 4221 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 4221 |
| IRS990/IntangibleAssetsGrp/BOYAmt | 0 | 500000 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 500000 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 172155 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 172155 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 5358934 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 5972946 |
| IRS990/IRPDocumentCnt | 0 | 7 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LegalDomicileStateCd | 0 | IL |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 1400849 |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembershipDuesAmt | 0 | 197550 |
| 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 SUREGERY OF THE HIP IN ORDER TO IMPROVE THE LIVES OF PATIENTS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 1 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 6541326 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 7281889 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 36221 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 36221 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 503275 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 1993763 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 2286993 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 21098 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 21098 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 4295 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 3461 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 7756 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 43695 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 35146 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherExpensesGrp/Desc | 0 | FOOD AND BEVERAGE |
| IRS990/OtherExpensesGrp/Desc | 1 | EQUIPMENT RENTAL |
| IRS990/OtherExpensesGrp/Desc | 2 | SOCIAL EVENTS |
| IRS990/OtherExpensesGrp/Desc | 3 | BANK FEES |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 134 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 17626 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 160298 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 63491 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 27773 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 160432 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 63491 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 27773 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 17626 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 46752 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 37795 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | MISCELLANEOUS REVENUE |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | DIVVY REWARDS |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 31862 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 1399 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 31862 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 1399 |
| IRS990/OtherRevenueTotalAmt | 0 | 33261 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 62446 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 56816 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 119262 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 26730 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 32669 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 59399 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 3552 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 4341 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 7893 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 15542 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 3000 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 79266 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 144724 |
| IRS990/PrincipalOfficerNm | 0 | WILLIAM MACAULAY MD |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 611430 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | EDUCATION AND REGISTRATION |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 521840 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 521840 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | AWARDS TO ORGANIZATIONS TO PROMOTE RESEARCH IN THE FIELD OF ORTHOPAEDIC SURGERY. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 168170 |
| IRS990/ProgSrvcAccomActy2Grp/GrantAmt | 0 | 10000 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 365272 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 16500 |
| IRS990/PYInvestmentIncomeAmt | 0 | 155554 |
| IRS990/PYOtherExpensesAmt | 0 | 642601 |
| IRS990/PYOtherRevenueAmt | 0 | 3770 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 437470 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 84624 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 218341 |
| IRS990/PYTotalExpensesAmt | 0 | 877442 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 962066 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 237288 |
| 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 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 555101 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/CurrentTaxYearAmt | 0 | 121416 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 121416 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 326793 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 365272 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 473787 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 321050 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 374137 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 1861039 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 172155 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 108561 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 104909 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 104865 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 108652 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 599142 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 521840 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 437470 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 656429 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 275363 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 455399 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 2346501 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 172155 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 108561 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 104909 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 104865 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 108652 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 599142 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.12370 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.11330 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearAmt | 0 | 33261 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 3770 |
| IRS990ScheduleA/OtherIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1566 |
| IRS990ScheduleA/OtherIncome509Grp/TotalAmt | 0 | 38597 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.79360 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.83040 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 3845269 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearAmt | 0 | 147408 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus1YearAmt | 0 | 35672 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus2YearsAmt | 0 | 2633 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus3YearsAmt | 0 | 65974 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/CurrentTaxYearMinus4YearsAmt | 0 | 110584 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 362271 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearAmt | 0 | 25992 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus1YearAmt | 0 | 35672 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus2YearsAmt | 0 | 2633 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus3YearsAmt | 0 | 65974 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/CurrentTaxYearMinus4YearsAmt | 0 | 110584 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 240855 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 848633 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 802742 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 1130216 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 596413 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 829536 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 4207540 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 1054049 |
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