· Public charity
American Association of Hip & Knee Surgeons
To advance hip and knee patient care through education, advocacy, research and outreach.
What you funded, over time
By grantee IRS cause code (NTEE).
A cause breakdown isn’t shown here: 49% of AMERICAN ASSOCIATION OF HIP & KNEE SURGEONS’s grantee dollars fall outside its nine largest cause areas, whether because the recipient carries no IRS cause code or because its cause sits in the long tail. A chart would be mostly one residual band and misrepresent the portfolio.
Where the money goes
Your grants by size, and where they go.
The 64 grants below total $883,200 — the rows itemised in this filing. The $933,017 headline is the total grant expense reported on the return, so the remaining $49,817 is giving the schedule does not break out: grants under the $5,000 itemisation floor, grants to individuals, and grants reported on other schedules. Every figure below describes the itemised rows only.
| Recipient | Amount |
|---|---|
| UNIVERSITY OF LOUISVILLE RESEARCH FOUNDATION | $13,800 |
| ROTHMAN INSTITUTE ORTHOPAEDIC FOUNDATION | $13,800 |
| MULTICARE HEALTH SYSTEM | $13,800 |
| NORTHWELL HEALTH INC | $13,800 |
| ROTHMAN INSTITUTE ORTHOPAEDIC FOUNDATION | $13,800 |
| THE CARRELL CLINIC HIP AND KNEE REPLACEMENT CENTER ADULT RECONSTRUCTION FEL | $13,800 |
| CLEVELAND CLINIC FOUNDATION | $13,800 |
| UNIVERSITY OF KENTUCKY | $13,800 |
| UNIVERSITY OF PENNSYLVANIA ADULT RECONSTRUCTIVE SURGERY FELLOWSHIP | $13,800 |
| NEW YORK UNIVERSITY | $13,800 |
| REGENTS OF THE UNIVERSITY OF CALIFORNIA | $13,800 |
| JIS ORTHOPAEDICS ADULT RECONSTRUCTION HIP & KNEE FELLOWSHIP | $13,800 |
| WAKE FOREST UNIVERSITY HEALTH SCIENCES | $13,800 |
| ANDERSON CLINIC POST GRADUATE MEDICAL EDUCATION FOUNDATION | $13,800 |
| CARILION MEDICAL CENTER | $13,800 |
Do your dollars go where the need is?
Each grant placed by the hardship in its grantee’s ZIP, then read against the area’s typical level.
Dollar for dollar, your grants (FY19–24) land where the poverty rate runs at 14%, against an area that typically sits at 11%. 81% of your dollars go to grantees based in above-average-need neighborhoods. Most of your grants land in higher-need ZIPs.
Matched: human-services grants are those whose grantee’s IRS cause code is Human Services. Placed by people below the poverty linein the grantee’s ZIP, averaged from the tracts in that ZIP; grantee ZIP can differ from where services are delivered.
Which US states your grants reach
US grants placed by each grantee’s ZIP, which can differ from where services are actually delivered. Need from public data — U.S. Census/ACS, CDC PLACES, Eviction Lab, USDA — shown as context about the area, never attributed to your giving.
Who you back again
Which organizations you funded more than once, and which you funded a single time. Each grantee is matched to its own filings.
42 repeat relationships — 39 still active in FY2024, 3 since wound down; 19 grantees were first funded in FY2024 (too recent to call).
How the two cohorts compare
Organizations
Total granted
Median revenue growth · since first grant
Still filing today
New vs renewed · share of each year
In FY2024, 68% of grant dollars renewed an existing relationship; $262k went to new ones.
Where new relationships form · theme of each grantee’s first grant
First-time = a grantee’s first year in your filing window; renewed = funded in an earlier year too. As a portfolio matures the renewed share naturally climbs — once funded, an org stays “renewable” — so the signal is the years that buck it (a new-grantee intake wave). The earliest year is left-censored: relationships that predate the data read as “new.” Theme is the grantee’s IRS cause.
Backed again, and grew
- THTHE HIP SOCIETY3× · 2021–2023 · $150k · revenue +55%
- TKTHE KNEE SOCIETY3× · 2021–2023 · $150k · revenue +32%
- BHBaptist Health South Florida Foundation Inc2× · 2022–2024 · $34k · revenue +118%
Funded once
- FFFOUNDATION FOR ARTHROPLASTY RESEARCH AND EDUCATIONone grant, 2019 · $200k · revenue -62% · 73% of their budget
- UOUNIVERSITY OF MINNESOTAone grant, 2022 · $40k
- BUBOSTON UNIVERSITY ORTHOPAEDIC SURGICAL ASSOCIATES INCone grant, 2022 · $20k
Repeat = funded in two or more distinct years; growth and survival are read from each grantee’s own subsequent IRS filings.
The map has a center of gravity: the average direction from the rest of the sector toward the organizations the foundation funds — the shape of its giving. Scoring every nonprofit along that direction surfaces the ones that look most like the portfolio. These are the closest matchesthat aren’t grantees — a resemblance in what they say they do, not a recommendation.
University of minnesota physicians serves as the integrated group practice for the university of minnesota medical school full-time faculty to provide the highest quality healthcare to patients and their families.university of minnesota…
Mass general brigham incorporated is developing an integrated health care delivery system throughout the region that offers patients a continuum of coordinated, high-quality care.
For more than 125 years, the mission of the johns hopkins hospital has been to lead the world in the diagnosis and treatment of disease and to train tomorrow's great physicians, nurses and scientists. above all, we aim to provide the…
Thomas jefferson university ("tju") is a comprehensive university with preeminence in transdisciplinary, experiential professional education, research and discovery, delivering exceptional value for the 21st century students with…
THE MASSACHUSETTS EYE AND EAR INFIRMARY ("THE INFIRMARY") IS A NOT-FOR-PROFIT TEACHING HOSPITAL CONDUCTING PATIENT CARE AND RESEARCH. THE INFIRMARY IS A TEACHING HOSPITAL OF HARVARD MEDICAL SCHOOL AND AN INTERNATIONAL CENTER FOR RESEARCH.…
University health is an academic health center providing accessible, state-of-the-art quality healthcare to our community regardless of the ability to pay.
Fred hutch cancer center ("fred hutch") unites innovative research and compassionate care to prevent and eliminate cancer and infectious disease. continued on schedule o
Emory University's mission is to create, preserve, teach, and apply knowledge in the service of humanity. (See Schedule O for continuation)
Our mission at the university of chicago medicine is to provide superior health care through rigorous research, innovative education, and comprehensive care and healing. in partnership with our colleagues, we pursue life-changing…
To improve the care and well being of our community, nationally and internationally, through innovative clinically relevant research that is consistent with the mission, vision and values of Baylor Scott & White Health (BSWH).
A.T. Still University of Health Sciences serves as a learning-centered university dedicated to preparing highly competent professionals through innovative academic programs. The University is committed to continuing its osteopathic…
Mission: to heal, to teach, to discover and to advance the health of the communities we serve. values: humanity, innovation, teamwork, diversity and equity - our values define our philosophy of care. they shape our actions and motivate and…
For reference, the grantee most central to the portfolio’s shape is Montefiore Medical Center and the most unlike its peers is Orthopaedic Associates of Grand Rapids Research & Education Institute. Resemblance is measured on each organization’s own IRS 990 mission text; it reflects how work is described, not its quality or impact.
Your grantees are a median of 42 years old; the field is 16. You back the established end — and your money leans older still.
The field is 22% startups (under 5 years old) — 2% of your grantees by number, and just 1% of your money.
The orgs you fund almost never close — 0.0% lost their exemption, against 13% of the field you don’t fund.
Age = years since IRS exemption (a founding proxy). “Closed” = auto-revocation for 3 years of non-filing — a floor on closure, not proof, and bigger established orgs lapse least. Association, not causation.
44 grantees tracked through their own filings, 2017–2025.
Each one resolved to its own IRS returns and tracked year by year — your grant beside their revenue from every source. Association, dated; never a causal claim.
Counted here: distinct organizations you funded across 2017–2025, not grant rows in a single year — so this will not match the grant count on the cover. 44 of the 78 grantees resolved in that span have returns of their own we could reconcile; the rest are funded organizations whose filings we could not track year by year.
Where your money sits — by cause, then by grantee
Each org by its size and your share of it — top-left is where you’re load-bearing
Go grantee by grantee — a decade per org, and how each moved after you funded them
A decade per grantee — revenue shaded, your grants as bars, all rows on one timeline.
- Who funds FOUNDATION FOR ARTHROPLASTY RESEARCH AND EDUCATION ↗
- Who funds THE HIP SOCIETY ↗
- Who funds THE KNEE SOCIETY ↗
- Who funds ROTHMAN INSTITUTE ORTHOPAEDIC FOUNDATION ↗
- Who funds Baptist Health South Florida Foundation Inc ↗
- Who funds Carilion Medical Center ↗
- Who funds TMH PHYSICIAN ORGANIZATION ↗
- Who funds Endeavor Health Clinical Operations ↗
- Who funds MAYO CLINIC ↗
- Who funds Rush University Medical Center ↗
- Who funds WEST VIRGINIA UNIVERSITY RESEARCH CORPORATION ↗
- Who funds University of Louisville Research Foundation ↗
- Who funds Vanderbilt University Medical Center ↗
- Who funds MULTICARE HEALTH SYSTEM ↗
- Who funds Northwestern University ↗
- Who funds THE ORTHO SAN ANTONIO ABM FOUNDATION ↗
- Who funds THE CLEVELAND CLINIC FOUNDATION ↗
- Who funds TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA ↗
- Who funds DUKE UNIVERSITY ↗
- Who funds SINAI HOSPITAL OF BALTIMORE INC ↗
- Who funds University of Miami ↗
- Who funds THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY ↗
- Who funds TEXAS ORTHOPEDIC RESEARCH AND EDUCATION FOUNDATION INC ↗
- Who funds Anderson Clinic Post-Graduate Medical Education Foundation ↗
- Who funds HOLY CROSS HOSPITAL INC ↗
- Who funds MISSISSIPPI SPORTS MEDICINE FOUNDATION ↗
The grantmakers whose grantees overlap with yours far more than size alone predicts. Each orbits closer the stronger the alignment; the arcs between them show where they also fund each other. Here it reads as a tightly interlocked camp — most of these funders back each other's grantees too.
Open a dossier: Omega Medical Grants Association · Muscular Dystrophy Association Inc · Arthroscopy Association of North America · American Cancer Society Inc · Cystic Fibrosis Foundation · American Heart Association Inc · American Orthopaedic Foot & Ankle Society Inc · The Children's Hospital of Philadelphia · Reach Out and Read Inc · The Children's Oncology Group Foundation Inc · Rheumatology Research Foundation · Mayo Clinic
Affinity is a Gamma-Poisson posterior co-funding rate, re-centered on the typical rate, so thin evidence shrinks toward no signal. A research starting point: overlap is association, not proof of shared intent.
Government reliance of your grantees
Every dot is one organization American Association of Hip & Knee Surgeons funds. Left–right is the share of its income from government; up–down is the share from you. Bigger dots raise more. Filter to federal or a single department — and drag the year to watch it move.
- Yale University — 12% of income from government
- Beth Israel Deaconess Medical Center Inc — 6% of income from government
- University of Miami — 5% of income from government
- Sinai Hospital of Baltimore Inc — 0% of income from government
- Holy Cross Hospital Inc — 0% of income from government
Government income is each org’s traced federal awards (USASpending — grants and contracts) plus state payments (open checkbooks) as a share of its total revenue (IRS Form 990); the self-reported government-grant line (990 line 1e) is carried for cross-check: a grantee that reports government grants we could not trace to a source is left off the chart rather than shown as receiving none. An association, not a claim that your grant caused the public funding. Coverage is precision-first — a floor, not a census; state records exist for 9 states, so a grantee outside them shows no state figure (dimmed) rather than a false zero. Federal award amounts are obligations, which can span years, so a single-year share is indicative. 990 filings lag 12–24 months.
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How do I get to American Association of Hip & Knee Surgeons?
Find your warmest path to American Association of Hip & Knee Surgeons through trustees and officers whose names appear on both boards. Search for your organization and Plinth traces the shortest route it can evidence.
Each link is a name appearing on two organizations’ public IRS 990 filings, matched on that name and, where the filings support it, on location. A same-state match has geographic support, which is a second matching feature rather than confirmation that the two are one person; a cross-state one is the likeliest to be two people who share a name. Every hop shows its tier, low-confidence and distant paths are held back rather than guessed, and it is worth confirming the person before you use the introduction.