Evidence map›Paper›PMID 15995109›Full record

SynthesisThe Journal of bone and joint surgery. American volume2005

Patellar resurfacing in total knee arthroplasty. A meta-analysis.

Emilios E Pakos, Evangelia E Ntzani, Thomas A Trikalinos

Abstract readComparative StudyMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in The Journal of bone and joint surgery. American volume, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 7 pooled it
6.8field-weighted citation impact, top 3% 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

64 citing papers in PubMed, 7 syntheses or guidelines pooled it, 161 citations in OpenAlex.

  1. Pooled it
  2. Determinants of anterior knee pain following total knee replacement: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2014
    Pooled it
  3. Pooled it
  4. Patellar resurfacing in total knee arthroplasty for osteoarthritis: a meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2011
    Pooled it
  5. Pooled it
  6. [Long-term results in total knee arthroplasty. A meta-analysis of revision rates and functional outcome].Der Chirurg; Zeitschrift fur alle Gebiete der operativen Medizen · 2011
    Pooled it
  7. Pooled it
  8. Trial
  9. Trial
  10. Article
  11. Article
  12. Observational
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Observational
  20. Review

4 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Emilios E PakosClinical Trials and Evidence-Based Medicine Unit, Department of Hygiene and Epidemiology, University of Ioannina School of Medicine, University Campus, 45110 Ioannina, Greece. me00911@cc.uoi.gr
Evangelia E Ntzani
Thomas A Trikalinos
University of Ioannina · GR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPatellar resurfacing during total knee arthroplasty remains controversial. We aimed to evaluate the effectiveness of this technique through an evaluation of the current literature.

methodsWe performed a meta-analysis of randomized controlled trials comparing total knee arthroplasties performed with and without patellar resurfacing. Outcomes of interest included the number of reoperations, the prevalence of postoperative anterior knee pain, and the improvement in various knee scores.

resultsTen trials assessing 1223 knees were eligible. The absolute risk of reoperation was reduced by 4.6% (95% confidence interval, 1.9% to 7.3%) in the patellar resurfacing arm (between-study heterogeneity, p < 0.01; I(2) = 60%), implying that one would have to resurface twenty-two patellae (95% confidence interval, fourteen to fifty-two patellae) in order to prevent one reoperation. Patellar resurfacing reduced the absolute risk of postoperative anterior knee pain by 13.8% (95% confidence interval, 6.4% to 21.2%), implying that one would have to resurface seven patellae (95% confidence interval, five to sixteen patellae) in order to prevent one case of postoperative anterior knee pain. Only four trials provided adequate data for a quantitative synthesis of the changes in the various knee scores; on the basis of those four trials, there was no difference in the mean improvement in the knee scores (standardized mean difference, 0.03; 95% confidence interval, -0.50 to 0.56).

conclusionsThe available evidence indicates that patellar resurfacing reduces the risks of reoperation and anterior knee pain after total knee arthroplasty. The observed effects are clinically important despite their modest magnitude. Additional, carefully designed randomized trials are required to strengthen this claim.

Indexed as

AgedArthroplasty, Replacement, KneeFemaleHumansMalePatellaPostoperative PainPrevalenceRandomized Controlled Trials as TopicRecovery of FunctionReoperationTreatment Outcome

Identifiers

PMID15995109
OpenAlexW2228886830

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.