Liabilities / Assets
15th percentile
Higher debt load relative to assets than 15% of similar nonprofits.
Association of Bone and Joint Surgeons
EIN 42-0848331 • 501(c)3 • Schaumburg, IL
Profile
The association of bone and joint surgeons (the association) is a nonprofit corporation, organized to exchange information, stimulate development and advancement of orthopaedic surgery, train leaders, sponsor and contribute to the scientific aspects of, and clinical research in, orthopaedic surgery, and sponsor publication of the scientific journal, clinical orthopaedics and related research (corr).
Siviq Scores
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
0.01x
Liabilities / Revenue
26th percentile
Higher debt load relative to revenue than 26% of similar nonprofits.
Net Margin
82nd percentile
Higher net margin than 82% of similar nonprofits.
Top Officer Pay
Score unavailable
No filing with officer rows is available for this organization yet.
Asset Growth
70th percentile
Faster asset growth than 70% of similar nonprofits.
Revenue Growth
64th percentile
Faster revenue growth than 64% of similar nonprofits.
Balance Sheet
Assets
Up$41,823,626
Up $4,554,296 (+12%) from 2023
Liabilities
Up$522,154
Up $259 (+0.0%) from 2023
Net Assets
Up$41,301,472
Up $4,554,037 (+12%) from 2023
Revenue
Up$5,019,116
Up $609,934 (+14%) from 2023
Expenses
Up$3,467,900
Up $18,931 (+0.5%) from 2023
Net Income
Up$1,551,216
Up $591,003 (+62%) from 2023
Trend Graphs
Filings
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
- Assets
- $41,823,626
- Liabilities
- $522,154
- Net assets
- $41,301,472
- Revenue
- $5,019,116
- Expenses
- $3,467,900
- Net income
- $1,551,216
Latest Filing Detail
Jump To
Filing Snapshot
- Filing Period
- Jan 1, 2024 to Dec 31, 2024
- Signed
- Nov 11, 2025
- Return Version
- 2024v5.2
- Gross Receipts
- $13,287,067
Mission and Program Overview
Mission
The association of bone and joint surgeons (the association) is a nonprofit corporation, organized to exchange information, stimulate development and advancement of orthopaedic surgery, train leaders, sponsor and contribute to the scientific aspects of, and clinical research in, orthopaedic surgery, and sponsor publication of the scientific journal, clinical orthopaedics and related research (corr).
The mission of The Association of Bone and Joint Surgeons is to advance the science and practice of orthopaedic surgery by creating, evaluating, and disseminating new knowledge and by facilitating interaction among all orthopedic specialties.
Balance Sheet Detail
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $35,688,749 | $39,121,910 | ▲ $3,433,161 |
| Savings and Temporary Cash Investments | $1,177,387 | $1,632,634 | ▲ $455,247 |
| Cash and Non-Interest-Bearing Accounts | $168,769 | $602,173 | ▲ $433,404 |
| Prepaid Expenses and Deferred Charges | $201,899 | $329,624 | ▲ $127,725 |
| Accounts Receivable | $5,670 | $99,375 | ▲ $93,705 |
| Land, Buildings, and Equipment, Net | $8,279 | $8,891 | ▲ $612 |
| Total Assets | $37,269,330 | $41,823,626 | ▲ $4,554,296 |
| Other Assets Total | $18,577 | $29,019 | ▲ $10,442 |
| Liabilities | |||
| Accounts Payable and Accrued Expenses | $303,192 | $343,063 | ▲ $39,871 |
| Deferred Revenue | $200,000 | $150,000 | ▼ $50,000 |
| Other Liabilities | $18,703 | $29,091 | ▲ $10,388 |
| Total Liabilities | $521,895 | $522,154 | ▲ $259 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $35,401,874 | $39,597,807 | ▲ $4,195,933 |
| Net Assets With Donor Restrictions | $1,345,561 | $1,703,665 | ▲ $358,104 |
| Total Net Assets Fund Balance | $36,747,435 | $41,301,472 | ▲ $4,554,037 |
| Total Liabilities and Net Assets / Fund Balance | $37,269,330 | $41,823,626 | ▲ $4,554,296 |
Asset Categories
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Equipment | $8,891 | $173,735 | $182,626 |
Endowment Activity
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2024 | $1,468,340 | $80,000 | ▲ $159,179 | - | $1,707,519 |
| 2023 | $1,289,708 | $1,750 | ▲ $176,882 | - | $1,468,340 |
| 2022 | $1,528,442 | - | ▼ $238,734 | - | $1,289,708 |
| 2021 | $1,335,569 | - | ▲ $192,873 | - | $1,528,442 |
| 2020 | $1,187,352 | $1,000 | ▲ $147,217 | - | $1,335,569 |
Compensation and Service Providers
Employees
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Colette Hohimer | Executive Director | FT | $209,254 | $40,911 | $250,165 |
| Colleen Briars | Director of Editorial Operations | FT | $143,781 | $36,614 | $180,395 |
| Kim Fruehling | Co-Executive Director | FT | $138,823 | $4,473 | $143,296 |
Board Members and Trustees
| Name | Title |
|---|---|
| Xavier A Duralde MD | Chair |
| Guido Marra MD | Past President |
| Amy L Ladd MD | President (From 6/24) |
| Matthew B Dobbs MD | President (Until 6/24) |
| Todd J Albert MD | Vice President |
| Deana Mercer MD | Secretary |
| Pablo Castaneda MD | Treas-Elect to Treas (From 6/24) |
| Brian A Jewett MD | Treasurer (Until 6/24) |
Revenue and Support
Revenue Composition
- Contributions and Grants
- $198,925
- Program Service Revenue
- $3,292,293
- Investment Income
- $1,527,898
- Other Revenue
- $0
- All Other Contributions
- $198,925
- Change in Net Assets
- $1,551,216
Audited Revenue Reconciliation
- Revenue per Audited Statements
- $4,868,747
- Revenue Not Reported on Financial Statements
- $150,369
- Revenue Not Reported on Form 990
- $3,002,821
- Total Revenue per Audited Statements
- $7,871,568
- Total Revenue per Form 990
- $5,019,116
Expenses and Functional Allocation
Major Expense Lines
| Line Item | Amount |
|---|---|
| Other Expenses | $2,189,060 |
| Salaries, Compensation, and Employee Benefits | $1,233,840 |
| Grants and Similar Amounts Paid | $45,000 |
| Professional Fundraising Fees | $0 |
| Total Fundraising Expense | $0 |
Functional Expense Allocation
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Fees for Services Other | $1,174,368 | $40,411 | - | $1,214,779 |
| Other Salaries and Wages | $341,731 | $341,770 | - | $683,501 |
| Conferences and Meetings | $385,391 | $20,558 | - | $405,949 |
| Current Officers, Directors, Trustees, and Key Employees | $192,046 | $201,415 | - | $393,461 |
| Fees for Service Investment Mgmnt Fees | - | $150,369 | - | $150,369 |
| Advertising | $93,976 | - | - | $93,976 |
| Payroll Taxes | $49,718 | $24,470 | - | $74,188 |
| Other Employee Benefits | $44,223 | $21,765 | - | $65,988 |
| Travel | $57,415 | $1,057 | - | $58,472 |
| Fees for Services Accounting | - | $55,191 | - | $55,191 |
| Insurance | $20,760 | $30,761 | - | $51,521 |
| Office Expenses | $24,083 | $19,350 | - | $43,433 |
| Grants to Domestic Orgs | $33,464 | - | - | $33,464 |
| Information Technology | $17,222 | $14,298 | - | $31,520 |
| Occupancy | - | $20,806 | - | $20,806 |
| Fees for Services Legal | $10,542 | $9,255 | - | $19,797 |
| Pension Plan Contributions | $6,856 | $9,846 | - | $16,702 |
| Grants to Domestic Individuals | $11,536 | - | - | $11,536 |
| All Other Expenses | $9,210 | $2,182 | - | $11,392 |
| Depreciation Depletion | - | $2,947 | - | $2,947 |
| Other Expenses | $162 | $2,400 | - | $2,400 |
| Total Functional Expenses | $2,472,803 | $995,097 | $0 | $3,467,900 |
Audited Expense Reconciliation
| Line Item | Amount |
|---|---|
| Total Expenses per Form 990 | $3,467,900 |
| Expenses per Audited Statements | $3,317,531 |
| Total Expenses per Audited Statements | $3,317,531 |
| Expenses Not Reported on Financial Statements | $150,369 |
| Expenses Not Reported on Form 990 | $0 |
International Activity
Grant and Assistance Recipients
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Musculoskeletal Tumor Society | Rosemont, IL | 501(c)(3) | Education | $33,464 |
Fundraising, Events, and Gaming
- Fundraising activities
- No
- Gaming activities
- No
- Professional fundraiser used
- No
Fundraising and Gaming Totals
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $0 |
Political and Lobbying Activity
- Political campaign activity
- No
- Lobbying activity
- No
- Subject to proxy tax
- No
Debt and Bond Financing
Other Reported Liabilities
| Liability | Amount |
|---|---|
| Operating Lease Liability | $29,091 |
Governance and Compliance
Governance Checklist
- Compiled or reviewed by an accountant
- No
- Annual disclosure for covered persons
- Yes
- Audit committee
- Yes
- Backup withholding compliance
- Yes
- Business relationship with 35% controlled entity
- No
- Business relationship with family members
- No
- Business relationship with organization members
- No
- Material changes to governing documents
- No
- Compensation from other sources disclosed
- No
- CEO compensation reviewed
- Yes
- Other officer compensation reviewed
- Yes
- Conflict-of-interest policy
- Yes
- Audited financial statements prepared
- No
- Key decisions subject to board approval
- Yes
- Management duties delegated
- No
Governance Explanations
Form 990, Part VI, Section A, line 6
“The Association is organized with members. The membership of the Association consists of four classes of members: Active, Senior, Emeritus, and Honorary.”
Form 990, Part VI, Section A, line 7A
“If the report of the Nominating Committee is accepted and no additional nominees are named, election shall be by acclamation. If additional candidates are nominated, election shall be by secret ballot. A favorable vote by the majority of members present and voting shall constitute election.”
Form 990, Part VI, Section A, line 7B
“Election of officers, approval of bylaw changes, admission of new members, location of annual conference.”
Form 990, Part VI, Section B, line 11B
“An independent certified public accounting firm (CPA) prepares the Association's Form 990 and submits the form to the Association's management and Treasurer for review. An electronic copy of the form is also provided to all voting members of the Board for review prior to filing. The Form 990 is also attached to the Illinois Form AG-990IL, which requires the signature of two officers. This provides the opportunity for a final review of the form by second officer.”
Form 990, Part VI, Section B, line 12C
“The association's management submits a questionnaire annually to each director with the questions designed to detect any violation of the conflict-of-interest policy. Management then prepares a report of its findings and presents it to the board of directors.”
Form 990, Part VI, Section B, line 15
“Compensation for the executive director and key employees is determined by the executive committee based on compensation for comparable positions in membership associations. Compensation is reviewed annually by the executive committee. Compensation for the executive director and key employees is determined by the executive committee based on compensation for comparable positions in membership associations. Compensation is reviewed annually by the executive committee.”
Form 990, Part VI, Section C, line 19
“Documents are available upon request.”
Filing and Contact Details
Filer
- Filer Name
- Association of Bone and Joint Surgeons
- EIN
- 42-0848331
- Phone
- 8477378943
- Address
- 1515 East Woodfield Road 345, Schaumburg, IL 60173
Signing Officer
- Name
- Pablo Castaneda
- Title
- Treasurer
- Phone
- 8477378943
- Signed
- 2025-11-11
- Discuss with paid preparer
- Yes
Organization Details
- Principal Officer
- Amy L Ladd MD
- Formed
- 1947
- Legal Domicile
- Ok
- Voting Board Members
- 6
- Independent Board Members
- 6
- Employees
- 11
- Volunteers
- 13
Preparer
- Firm
- Aprio Advisory Group LLC
- Address
- 111 Rockville Pike Suite 600, Rockville, MD 20850
- Preparer
- Stacy Cullen
- Phone
- 3012316200
Supplemental Narrative
Additional Explanations
Form 990, Part IX, line 11G
“Professional fees: Program service expenses 32,832. Management and general expenses 40,411. Fundraising expenses 0. Total expenses 73,243. Editorial Stipends: Program service expenses 1,090,299. Management and general expenses 0. Fundraising expenses 0. Total expenses 1,090,299. Independent Contractors: Program service expenses 51,237. Management and general expenses 0. Fundraising expenses 0. Total expenses 51,237.”
Form 990, Part XII, Line 2C:
“There were no changes to the organization's selection process or oversight process during the year.”
Financial Statement Notes
Part V, Line 4:
“The Association's endowment funds are to be held in perpetuity and investment income is to be utilized for the Association's mission.”
Part X, Line 2:
“The Association applies the guidance on accounting for uncertain tax positions in FASB ASC 740 Income Taxes. The Association has no uncertain tax positions at December 31, 2024. The Association is no longer subject to income tax examinations for tax years up to and including 2021.”
Raw XML AppendixShowing 400 of 612 raw XML fields
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
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| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 99375 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | The mission of The Association of Bone and Joint Surgeons is to advance the science and practice of orthopaedic surgery by creating, evaluating, and disseminating new knowledge and by facilitating interaction among all orthopedic specialties. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 93976 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 93976 |
| IRS990/AllOtherContributionsAmt | 0 | 198925 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 2182 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 9210 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 11392 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | Kim Fruehling |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 8477378943 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1515 East Woodfield Road Suite 345 |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | Schaumburg |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | IL |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 60173 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
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| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 602173 |
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| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 393461 |
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| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 385391 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 405949 |
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| IRS990/Desc | 0 | The organization publishes the medical journal "Clinical Orthopaedics and Related Research" to disseminate orthopaedic knowledge to professionals in the field of orthopaedic surgery. |
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| 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 | Past President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | President (Until 6/24) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | President (From 6/24) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | Treasurer (Until 6/24) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | Treas-Elect to Treas (From 6/24) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | Chair |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | Vice President |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | Secretary |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | Executive Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | Co-Executive Director |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | Dir of Editorial Operations |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1947 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 738985 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 6 |
| IRS990/GrantAmt | 0 | 45000 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 11536 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 11536 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 33464 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 33464 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 9006936 |
| IRS990/GrossReceiptsAmt | 0 | 13287067 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 6 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 3 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 14298 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 17222 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 31520 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 30761 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 20760 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 51521 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 788913 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 788913 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 35688749 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 39121910 |
| IRS990/IRPDocumentCnt | 0 | 14 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 173735 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 8279 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 8891 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 182626 |
| IRS990/LegalDomicileStateCd | 0 | OK |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 8267951 |
| 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 | The Association of Bone and Joint Surgeons (the Association) is a nonprofit corporation, organized to exchange information, stimulate development and advancement of orthopaedic surgery, train leaders, sponsor and contribute to the scientific aspects of, and clinical research in, orthopaedic surgery, and sponsor publication of the scientific journal, Clinical Orthopaedics and Related Research (CORR). |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 36747435 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 41301472 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 738985 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 738985 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 3002821 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 35401874 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 39597807 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 20806 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 20806 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 19350 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 24083 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 43433 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 18577 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 29019 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 21765 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 44223 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 65988 |
| IRS990/OtherExpensesGrp/Desc | 0 | Subscriptions |
| IRS990/OtherExpensesGrp/Desc | 1 | Relocation |
| IRS990/OtherExpensesGrp/Desc | 2 | Credit Card Fees |
| IRS990/OtherExpensesGrp/Desc | 3 | Newsletter |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 14860 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 8474 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 2912 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 3 | 2400 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 100 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 162 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 14960 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 8474 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 3074 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 2400 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 18703 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 29091 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 341770 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 341731 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 683501 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 24470 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 49718 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 74188 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 9846 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 6856 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 16702 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 201899 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 329624 |
| IRS990/PrincipalOfficerNm | 0 | Amy L Ladd MD |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 513120 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 611710 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 541900 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 513120 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Publishing Income |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | Annual Meeting |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | Membership Dues |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | Subscription Income |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 3026626 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 136128 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 108000 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 3 | -1835 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 3050000 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 136128 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 108000 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 3 | -1835 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 23374 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | Educational/Scientific meetings and workshops to disseminate current research findings in various areas of orthopaedic surgery to professionals in the field. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 419714 |
| IRS990/ProgSrvcAccomActy2Grp/RevenueAmt | 0 | 242293 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | Correlations is a subscription e-newsletter where every week subscribers receive timely, practical insights drawn from the best-available evidence, suggestions from experts in health finance and healthcare policy. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 184084 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 34670 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 43392 |
| IRS990/PYInvestmentIncomeAmt | 0 | 1134348 |
| IRS990/PYOtherExpensesAmt | 0 | 2547715 |
| IRS990/PYOtherRevenueAmt | 0 | 0 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 3240164 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 960213 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 857862 |
| IRS990/PYTotalExpensesAmt | 0 | 3448969 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 4409182 |
| IRS990/QuidProQuoContributionsInd | 0 | 0 |
| IRS990/RcvFndsToPayPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 1551216 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RevenueAmt | 0 | 3026626 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 1177387 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 1632634 |
| IRS990ScheduleA/AmountsRcvdDsqlfyPersonGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearAmt | 0 | 198925 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus1YearAmt | 0 | 34670 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 297199 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 9600 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 8850 |
| IRS990ScheduleA/GiftsGrantsContrisRcvd509Grp/TotalAmt | 0 | 549244 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearAmt | 0 | 788913 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus1YearAmt | 0 | 761928 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 607893 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 612345 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 524878 |
| IRS990ScheduleA/GrossInvestmentIncome509Grp/TotalAmt | 0 | 3295957 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearAmt | 0 | 3292293 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus1YearAmt | 0 | 3209350 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus2YearsAmt | 0 | 3215833 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus3YearsAmt | 0 | 3180977 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/CurrentTaxYearMinus4YearsAmt | 0 | 3113281 |
| IRS990ScheduleA/GrossReceiptsAdmissionsGrp/TotalAmt | 0 | 16011734 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearAmt | 0 | 788913 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus1YearAmt | 0 | 761928 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus2YearsAmt | 0 | 607893 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus3YearsAmt | 0 | 612345 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/CurrentTaxYearMinus4YearsAmt | 0 | 524878 |
| IRS990ScheduleA/InvestmentIncomeAndUBTIGrp/TotalAmt | 0 | 3295957 |
| IRS990ScheduleA/InvestmentIncomeCYPct | 0 | 0.16600 |
| IRS990ScheduleA/InvestmentIncomePYPct | 0 | 0.16470 |
| IRS990ScheduleA/PubliclySupportedOrg509a2Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY509Pct | 0 | 0.83400 |
| IRS990ScheduleA/PublicSupportPY509Pct | 0 | 0.83530 |
| IRS990ScheduleA/PublicSupportTotal509Amt | 0 | 16560978 |
| IRS990ScheduleA/SubstAndDsqlfyPrsnsTotGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/SubstantialContributorsAmtGrp/TotalAmt | 0 | 0 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY509Ind | 0 | X |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearAmt | 0 | 3491218 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus1YearAmt | 0 | 3244020 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus2YearsAmt | 0 | 3513032 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus3YearsAmt | 0 | 3190577 |
| IRS990ScheduleA/Total509Grp/CurrentTaxYearMinus4YearsAmt | 0 | 3122131 |
| IRS990ScheduleA/Total509Grp/TotalAmt | 0 | 16560978 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearAmt | 0 | 4280131 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus1YearAmt | 0 | 4005948 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus2YearsAmt | 0 | 4120925 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus3YearsAmt | 0 | 3802922 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/CurrentTaxYearMinus4YearsAmt | 0 | 3647009 |
| IRS990ScheduleA/TotalSupportCalendarYearGrp/TotalAmt | 0 | 19856935 |
| 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/BoardDesignatedBalanceEOYPct | 0 | 0.14170 |
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