Evidence map›Paper›PMID 22204002›Full record

Trial reportThe Journal of bone and joint surgery. American volume2011

Patellar resurfacing in total knee replacement: five-year clinical and economic results of a large randomized controlled trial.

Suzanne Breeman, Marion Campbell, Helen Dakin, Nick Fiddian, Ray Fitzpatrick, Adrian Grant, Alastair Gray, Linda Johnston, Graeme Maclennan, Richard Morris and 2 more

Registry-linked trialOpen access · greenAbstract readMulticenter StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in The Journal of bone and joint surgery. American volume, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02268097 (Comparison of Two Methods of Patellar Resurfacing in Total Knee Arthroplasty.A Prospective, Randomized, Double-blind Study), which is not on this map. Cited by 44 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 6 pooled it
8.5field-weighted citation impact, top 2% 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.

NCT02268097 naunknown statusnot on this mapstarted 2014, after this paper: background citation

Comparison of Two Methods of Patellar Resurfacing in Total Knee Arthroplasty.A Prospective, Randomized, Double-blind Study

TypeinterventionalSponsorPeking University Third HospitalRan2014 to 2017Enrolled101ConditionsOsteoarthritisArmsPatellar resurfacing with freehand technique, Patellar resurfacing with resection guide technique
3 · Its place in the literature

Who cites it

44 citing papers in PubMed, 6 syntheses or guidelines pooled it, 94 citations in OpenAlex.

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  7. [Long-term effectiveness of different patellar treatments in primary total knee arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 6 institutions in 1 country.

Suzanne BreemanHealth Services Research Unit, University of Aberdeen, Aberdeen, AB25 2ZD, United Kingdom.
Marion Campbell
Helen Dakin
Nick Fiddian
Ray Fitzpatrick
Adrian Grant
Alastair Gray
Linda Johnston
Graeme Maclennan
Richard Morris
David Murray
KAT Trial Group
University of Aberdeen · GBUniversity of Oxford · GBNuffield Orthopaedic Centre · GBRoyal Bournemouth Hospital · GBUniversity College London · GBUniversity of Dundee · GB

Funding

Chief Scientist Office HSRU1Department of Health 95/10/01
6 · The paper itself

Abstract

backgroundThere is conflicting evidence regarding the merits of patellar resurfacing during total knee arthroplasty, as many of the previous randomized controlled trials have not been adequately powered.

methodsA pragmatic, multicenter, randomized controlled trial was initiated in 1999 in the United Kingdom. Within a partial factorial design, 1715 patients were randomly allocated to receive or not receive patellar resurfacing during total knee arthroplasty. The primary outcome measure was the Oxford Knee Score; secondary measures included the Short Form-12, the EuroQoL 5D, cost, cost-effectiveness, and the need for subsequent knee surgery.

resultsThe mean Oxford Knee Score was 35 points at five years postoperatively in both groups. There was no significant difference between the groups with respect to the mean Oxford Knee Score (difference, 0.59 point; 95% confidence interval, -0.58 to 1.76 points) or any other outcome measure at five years postoperatively. The outcome was not affected by whether the patella was domed or anatomic. There was no significant difference between the two groups with respect to the prevalence of knee-related readmission, of minor or intermediate reoperation, or of subsequent patella-related surgery. The total health care cost for the primary arthroplasty, subsequent monitoring, and any revision surgery did not differ significantly between the two groups.

conclusionsIn the largest randomized controlled trial of patellar resurfacing reported to date, the functional outcome, reoperation rate, and total health care cost five years after primary total knee arthroplasty were not significantly affected by the addition of patellar resurfacing to the surgical procedure.

Indexed as

AdultAgedArthroplasty, Replacement, KneeCost-Benefit AnalysisFemaleHumansMaleOsteoarthritis, KneePatellaPatient SatisfactionProspective StudiesReoperationTreatment OutcomeUnited Kingdom

Identifiers

PMID22204002
OpenAlexW2115416653

What OpenQuestion holds

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Read underepoch 390

Registered trials

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.