Evidence map›Paper›PMID 21792496›Full record

SynthesisThe Journal of bone and joint surgery. American volume2011

Patellar resurfacing in total knee arthroplasty: does design matter? A meta-analysis of 7075 cases.

George Pavlou, Carl Meyer, Andreas Leonidou, Mohammed As-Sultany, Robert West, Eleftherios Tsiridis

Abstract readComparative StudyMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis 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. Cited by 62 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed, 8 pooled it
9.1field-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.

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

62 citing papers in PubMed, 8 syntheses or guidelines pooled it, 143 citations in OpenAlex.

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  6. Patellar denervation with electrocautery in total knee arthroplasty without patellar resurfacing: a meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014
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  7. Determinants of anterior knee pain following total knee replacement: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014
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2 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 2 countries.

George PavlouRobert Jones Agnes Hunt Orthopaedic Hospital, Gabowen, Oswestry SY10-7AG, United Kingdom.
Carl Meyer
Andreas Leonidou
Mohammed As-Sultany
Robert West
Eleftherios Tsiridis
Aristotle University of Thessaloniki · GRRobert Jones and Agnes Hunt Orthopaedic Hospital · GBRoyal United Hospital · GBUniversity of Leeds · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatellar resurfacing in total knee arthroplasty remains controversial. The aim of this study was to compare outcomes following total knee arthroplasty with patellar resurfacing with those following total knee arthroplasty without patellar resurfacing. We also sought to identify any correlation between outcomes and prosthetic design.

methodsEighteen Level-I randomized controlled trials with a cumulative sample size of 7075 knees (3463 in the resurfacing group and 3612 in the non-resurfacing group) satisfied the inclusion criteria. In the primary analysis, patellar resurfacing total knee arthroplasty was compared with non-resurfacing total knee arthroplasty, with use of reoperation rates, incidence of anterior knee pain, and functional scores as outcome measures. The secondary analysis focused on comparing patella-friendly and non-patella-friendly total knee arthroplasty designs with regard to the same three outcome measures.

resultsNo significant differences were found between the resurfacing and non-resurfacing groups with regard to the incidence of anterior knee pain. A higher rate of reoperations was observed in the non-resurfacing group. Analysis of homogeneous data comparing patella-friendly with non-patella-friendly total knee arthroplasty designs demonstrated no differences in the incidence of reoperations.

conclusionsNo evidence was found to suggest that either patellar resurfacing or the prosthetic design affects the clinical outcome of a total knee arthroplasty. The higher incidence of reoperations in the non-resurfacing group may be attributed to the fact that secondary patellar resurfacing adds a surgical option for the treatment of anterior knee pain following total knee arthroplasty, thus artificially increasing the rate of reoperations in the non-resurfacing group.

Indexed as

Knee ProsthesisProsthesis DesignArthroplasty, Replacement, KneeHumansPatellaPatellofemoral JointPostoperative PainRecovery of FunctionReoperationTreatment Outcome

Identifiers

PMID21792496
OpenAlexW2180317740

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.