Evidence map›Paper›PMID 41541509›Full record

ArticleArthroscopy, sports medicine, and rehabilitation2025

Patellar Osteochondral Allograft Transplantation Yields Clinically Meaningful Improvement in 2-Year Patient-Reported Outcomes.

Nathaniel M Tchangou, Christopher A Schneble, Randal Timothy Kreulen, Andres Perez, Rioke M Diejomaoh, Fotios P Tjoumakaris, Kevin B Freedman, Bradford S Tucker

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Article in Arthroscopy, sports medicine, and rehabilitation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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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. Article
4 · The record

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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

8 authors.

Nathaniel M TchangouRothman Orthopaedic Institute, Philadelphia, Pennsylvania, U.S.A.
Christopher A SchnebleRothman Orthopaedic Institute, Philadelphia, Pennsylvania, U.S.A.
Randal Timothy KreulenRothman Orthopaedic Institute, Philadelphia, Pennsylvania, U.S.A.
Andres PerezRothman Orthopaedic Institute, Philadelphia, Pennsylvania, U.S.A.
Rioke M DiejomaohBaylor College of Medicine, Houston, Texas, U.S.A.
Fotios P TjoumakarisRothman Orthopaedic Institute, Egg Harbor Township, New Jersey, U.S.A.
Kevin B FreedmanRothman Orthopaedic Institute, Philadelphia, Pennsylvania, U.S.A.
Bradford S TuckerRothman Orthopaedic Institute, Philadelphia, Pennsylvania, U.S.A.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: To assess the outcomes of patellar osteochondral allograft (OCA) transplantation and access the effect of preoperative indications and patient characteristics on outcomes. Methods: Primary patellar OCA transplantation cases were retrospectively identified from a single surgeon from August 2017 and August 2021, all using grafts preserved with the Missouri Osteochondral Allograft Preservation technique. Patients with less than 2 years of follow-up were excluded. Variables collected included demographics, previous surgical and concomitant procedures, primary pathology and indications, graft size and location, range of motion, Magnetic Resonance Observation of Cartilage Repair Tissue 2.0 scores, patient-reported outcome measures, and reoperations. Primary pathology and unipolar versus bipolar grafting subgroups were analyzed. Preoperative and postoperative comparison was analyzed via paired sample Results: Twenty-eight cases (16 unipolar patellar OCA transplantation, 12 bipolar transplantation) met both inclusion and exclusion criteria, with a mean age of 31.0 ± 10.3 years, a mean body mass index of 30.0 ± 5.6, and a mean follow-up of 3.6 ± 1.4 years (range 2.3-5.8 years). Eighteen knees presented with lateral patellar instability, 9 with patellofemoral (PF) chondrosis, and 1 with juvenile osteochondritis dissecans. Three knees (10.7%) in total were converted to total knee arthroplasty, all of which occurred in the setting of PF chondrosis. OCA transplantation improved International Knee Documentation Committee (IKDC; 36.6-71.9; Conclusions: Patellar OCA transplantation resulted in overall improvement in PROs with an 11% rate of conversion to total knee arthroplasty at 2-years follow-up. Level of Evidence: Level IV, therapeutic retrospective case series.

Identifiers

PMID41541509
PMCPMC12800812

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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.