Evidence map›Paper›PMID 41359919›Full record

ArticleJournal of the American Academy of Orthopaedic Surgeons. Global research & reviews2025

Primary Diagnoses Associated With and Outcomes of Total Knee Arthroplasty in Patients Aged 15 to 45 Years.

Philip P Ratnasamy, Stephanie V Kaszuba, Gwyneth C Maloy, Kinjal Vasavada, Rajiv S Vasudevan, Jonathan N Grauer, Lee E Rubin

Abstract read
In one paragraph

Article in Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Philip P RatnasamyFrom the Department of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, CT.
Stephanie V Kaszuba
Gwyneth C Maloy
Kinjal Vasavada
Rajiv S Vasudevan
Jonathan N GrauerORCID 0000-0002-2626-7278
Lee E Rubin

Funding

Short-Term Reserch Training: Students in Health SchoolsT35HL007649 · NHLBI · YALE UNIVERSITY · PI Sarwat I Chaudhry, Erica L Herzog · 1987 to 2026
$5.7M
NHLBI NIH HHS T35 HL007649
6 · The paper itself

Abstract

backgroundTotal knee arthroplasty (TKA) in younger patients is relatively uncommon.

methodsThe PearlDiver M165Ortho data set was used to identify TKA patients aged 15 to 45 years. Primary diagnoses associated with surgery were categorized into the following groups: primary osteoarthritis (OA), posttraumatic arthritis (PTOA), rheumatoid arthritis (RA), and osteonecrosis. Ninety-day adverse events and readmissions and 10-year periprosthetic fractures, loosening, stiffness, revisions, and prosthetic joint infection (PJI) were determined. Independent predictors of adverse outcomes were identified by using multivariable analysis, and Kaplan-Meier survival analysis for 10-year revisions was performed.

resultsA total of 26,566 TKA patients aged 15 to 45 years were identified. Among this cohort, the diagnosis associated with surgery was OA for 22,900 (86.2%), PTOA for 1648 (6.2%), RA for 1438 (5.4%), and osteonecrosis for 580 (2.2%). For the entire study cohort, 90-day adverse events were noted for 11.1% and readmissions for 7.4%. The 10-year periprosthetic fracture rate was 0.2%, aseptic loosening rate was 3.6%, stiffness rate was 26.9%, revision rate was 7.9%, and PJI rate was 5.7%. Diagnosis associated with surgery was not predictive of 90-day outcomes or 10-year adverse periprosthetic fracture, aseptic loosening, stiffness, or revisions. On Kaplan-Meier analysis, survival was clinically similar across all diagnosis groups, ranging from 86.2% to 89.7% at 10 years.

conclusionYoung TKA patients experience relatively low 90-day adverse events and readmissions and long-term complications regardless of diagnosis associated with surgery. Implant survival is similarly to what is observed in older TKA.

Indexed as

Arthroplasty, Replacement, KneePostoperative ComplicationsAdolescentAdultArthritis, RheumatoidFemaleHumansMaleMiddle AgedOsteoarthritis, KneeOsteonecrosisPatient ReadmissionPeriprosthetic FracturesProsthesis FailureReoperationTreatment Outcome

Identifiers

PMID41359919
PMCPMC12685397

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.