Evidence map›Paper›PMID 30173540›Full record

ArticleCartilage2020

Bipolar Osteochondral Allograft Transplantation of the Patella and Trochlea.

Raffy Mirzayan, Michael D Charles, Michael Batech, Brian D Suh, David DeWitt

Open access · bronzeAbstract readEvaluation Study
PubMed Full text at PMC Publisher
In one paragraph

Article in Cartilage, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 2 pooled it
1.1field-weighted citation impact, top 24% of its field
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.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

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

20 citing papers in PubMed, 2 syntheses or guidelines pooled it, 31 citations in OpenAlex.

  1. Outcomes of surgical fixation of osteochondral fracture: a systematic review.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2026
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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

5 authors at 2 institutions in 1 country.

Raffy MirzayanDepartment of Orthopaedic Surgery, Kaiser Permanente Southern California, Baldwin Park, CA, USA.ORCID 0000-0001-7008-2484
Michael D CharlesDepartment of Orthopaedic Surgery, USC Keck School of Medicine, Los Angeles, CA, USA.
Michael BatechDepartment of Orthopaedic Surgery, Kaiser Permanente Southern California, Baldwin Park, CA, USA.
Brian D SuhDepartment of Orthopaedic Surgery, Kaiser Permanente Southern California, Baldwin Park, CA, USA.
David DeWittDepartment of Orthopaedic Surgery, Kaiser Permanente Southern California, Baldwin Park, CA, USA.
Kaiser Permanente Baldwin Park Medical Center · USKeck Hospital of USC · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate clinical, functional, and radiographic outcomes of patients who underwent bipolar osteochondral allograft transplantation (OCAT) of the patellofemoral joint (PFJ).

designProspectively collected data on 18 knees who underwent fresh osteochondral allograft transplantation of the patella and trochlea by a single surgeon were reviewed. Inclusion criteria were: high-grade chondral lesions of PFJ (5 knees), or recurrent patella dislocations with trochlear dysplasia and chondral injury to the patella and/or trochlea (13 knees). Functional scores were obtained preoperatively and at follow-up appointments included Knee injury and Osteoarthritis Outcome Score (KOOS), International Knee Documentation Committee (IKDC), Oxford, Cincinnati, Tenger-Lysholm, visual analogue scale (VAS)-pain, and Single Assessment Numeric Evaluation (SANE). Grafts were also evaluated using Osteochondral Allograft MRI Scoring System (OCAMRISS).

resultsThree patients were lost to follow-up, leaving 4 knees in group 1, and 11 knees in group 2. Average age was 28.9 years (range 16-52 years). The average follow-up was 33.2 months (range 12-64 months). There was significant improvement of KOOS (from 38.7 to 83.1), IKDC (from 28.2 to 76.6), Tegner-Lysholm (from 38.3 to 88.3), Oxford (from 22.7 to 42.9), Cincinnati (from 35.1 to 83.6), VAS (from 71 to 17.9.), and SANE (from 43.3 to 83) (

conclusionBipolar OCAT of the patella and trochlea provide significant improvement in functional outcomes, relief from pain, activity level, and prevent recurrent instability.

Indexed as

AdolescentAdultAllograftsCartilageFemaleFollow-Up StudiesFunctional StatusHumansJoint DislocationsJoint InstabilityMaleMiddle AgedPatellofemoral JointProspective StudiesRecovery of FunctionTreatment Outcomebiologic resurfacing patellabulk allograftkneeosteochondral allograftspatellar dislocation instabilitypatellofemoraltrochlear dysplasia

Identifiers

PMID30173540
PMCPMC7488947
OpenAlexW2889558642

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.