Evidence map›Paper›PMID 24509880›Full record

Trial reportKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2015

No clinical difference between fixed- and mobile-bearing cruciate-retaining total knee arthroplasty: a prospective randomized study.

O Bailey, K Ferguson, E Crawfurd, P James, P A May, S Brown, M Blyth, W J Leach

Abstract readMulticenter StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

19 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. No difference between mobile and fixed bearing in primary total knee arthroplasty: a meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022
    Pooled it
  2. Mobile-bearing versus fixed-bearing total knee arthroplasty: a meta-analysis of randomized controlled trials.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2022
    Pooled it
  3. Pooled it
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  10. Superior long-term survival for fixed bearing compared with mobile bearing in ligament-balanced total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018
    Article
  11. No differences between fixed- and mobile-bearing total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017
    Review
  12. Article
  13. Higher forgotten joint score for fixed-bearing than for mobile-bearing total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2016
    Article
  14. Clinical outcome after total knee replacement.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015
    Article
  15. Survivorship at minimum 10-year follow-up of a rotating-platform, mobile-bearing, posterior-stabilised total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2015
    Article
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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

8 authors.

O BaileyWestern Infirmary, Dumbarton Road, Glasgow, G11 6NT, UK, bailey.oliver@doctors.org.uk.
K Ferguson
E Crawfurd
P James
P A May
S Brown
M Blyth
W J Leach

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeIt is hypothesized that mobile polyethylene bearings in total knee arthroplasty (TKA) may confer benefits with regard to range of motion and have improved clinical outcome scores in comparison with an arthroplasty with a fixed-bearing design. Our study compares clinical outcomes between patients who undergo TKA with either a rotating platform or fixed bearing using a posterior cruciate-retaining design.

methodsThree hundred and thirty-one patients were randomized to receive either a rotating-platform (161 patients) or a fixed-bearing (170 patients) implant. All patients were assessed pre-operatively and at 1 and 2 years post-operatively using standard tools (range of movement, Oxford Knee Score, American Knee Society Score, SF12 and Patella Score).

resultsThere was no difference in pre- to 2-year post-operative outcomes between the groups with regard to improvement in range of motion (10° ± 16 vs. 9° ± 15), improvement in Oxford Knee Score (-17.6 ± 9.9 vs. -19.1 ± 8.4), improvement in American Knee Society Score (49.5 ± 24.7 vs. 50.7 ± 21.0), function (23.6 ± 19.6 vs. 25.0 ± 22.5) and pain (34.9 ± 16.2 vs. 35.8 ± 14.1) subscores, improvement in SF12 Score (10.0 ± 16.3 vs. 12.3 ± 15.8) or improvement in Patella Score (9.7 ± 7.4 vs. 10.6 ± 7.1).

conclusionNo difference was demonstrated in clinical outcome between patients with a rotating-platform and fixed-bearing posterior cruciate-retaining TKA at 2-year follow-up. LEVEL OF EVIDENCE: I.

Indexed as

Knee ProsthesisPatient Outcome AssessmentProsthesis DesignRange of Motion, ArticularAdultAgedAged, 80 and overArthroplasty, Replacement, KneeFemaleHumansMaleMiddle AgedOsteoarthritis, KneeProspective Studies

Identifiers

PMID24509880

What OpenQuestion holds

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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.