Evidence map›Paper›PMID 34021791›Full record

SynthesisEuropean journal of orthopaedic surgery & traumatology : orthopedie traumatologie2022

Mobile-bearing versus fixed-bearing total knee arthroplasty: a meta-analysis of randomized controlled trials.

Ashraf T Hantouly, Abdulaziz F Ahmed, Osama Alzobi, Ammar Toubasi, Motasem Salameh, Aissam Elmhiregh, Shamsi Hameed, Ghalib O Ahmed, Abtin Alvand, Mohammed Al Ateeq Al Dosari

Abstract readMeta-Analysis
In one paragraph

Synthesis in European journal of orthopaedic surgery & traumatology : orthopedie traumatologie, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

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

  1. Pooled it
  2. Robotic-assisted versus conventional total knee arthroplasty: a systematic review and meta-analysis of randomized controlled trials.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024
    Pooled it
  3. All-polyethylene versus metal-backed tibial components in total knee arthroplasty: a meta-analysis of randomized controlled trials.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2023
    Pooled it
  4. [Research progress of cementless prosthesis in total knee arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 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

10 authors.

Ashraf T HantoulyDepartment of Orthopaedic Surgery, Surgical Specialty Center, Hamad Medical Corporation, Doha, Qatar.
Abdulaziz F AhmedDepartment of Orthopaedic Surgery, Surgical Specialty Center, Hamad Medical Corporation, Doha, Qatar. afahmed@alumni.harvard.edu.ORCID http://orcid.org/0000-0002-1902-3291
Osama AlzobiDepartment of Orthopaedic Surgery, Surgical Specialty Center, Hamad Medical Corporation, Doha, Qatar.
Ammar ToubasiDepartment of Orthopaedic Surgery, Surgical Specialty Center, Hamad Medical Corporation, Doha, Qatar.
Motasem SalamehDepartment of Orthopaedic Surgery, Surgical Specialty Center, Hamad Medical Corporation, Doha, Qatar.
Aissam ElmhireghDepartment of Orthopaedic Surgery, Surgical Specialty Center, Hamad Medical Corporation, Doha, Qatar.
Shamsi HameedDepartment of Orthopaedic Surgery, Surgical Specialty Center, Hamad Medical Corporation, Doha, Qatar.
Ghalib O AhmedDepartment of Orthopaedic Surgery, Surgical Specialty Center, Hamad Medical Corporation, Doha, Qatar.
Abtin AlvandNuffield Department of Orthopaedics, Rheumatology & Musculoskeletal Sciences, University of Oxford, Oxford, UK.
Mohammed Al Ateeq Al DosariDepartment of Orthopaedic Surgery, Surgical Specialty Center, Hamad Medical Corporation, Doha, Qatar.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe purpose of this study was to perform a meta-analysis comparing mobile-bearing with fixed-bearing total knee arthroplasty (TKA) in terms of all-cause revision rates, aspetic loosening, knee functional scores, range of motion and radiographic lucent lines and osteolysis.

methodsPubMed, Cochrane Library, Google Scholar and Web of Science were searched up to January 2020. Randomized controlled trials that compared primary mobile-bearing with fixed-bearing TKA, reporting at least one of the outcomes of interest, at a minimum follow-up of 12 months were included. All outcomes of interest were pooled at short-term (< 5 years), mid-term (5 to 9 years) and long-term (> = 10 years) follow-up intervals.

resultsA total of 70 eligible articles were included in the qualitative and statistical analyses. There was no difference between mobile-bearing or fixed-bearing TKA at short-term, mid-term and long-term follow-ups in all outcome measures including all-cause revision rate, aseptic loosening, oxford knee score, knee society score, Hospital for Special Surgery score, maximum knee flexion, radiographic lucent lines and radiographic osteolysis.

conclusionThe current level of evidence demonstrated that both mobile-bearing and fixed-bearing designs achieved excellent outcomes, yet it does not prove the theoretical advantages of the mobile-bearing insert over its fixed-bearing counterpart. The use of either design could therefore be supported based on the outcomes assessed in this study. LEVEL OF EVIDENCE: Level II, Therapeutic.

Indexed as

Arthroplasty, Replacement, KneeKnee ProsthesisOsteoarthritis, KneeHumansKnee JointProsthesis DesignRandomized Controlled Trials as TopicRange of Motion, ArticularTreatment OutcomeArthroplastyBearingFixedMeta-analysisMobileSystematic reviewTotal knee

Identifiers

PMID34021791
PMCPMC8924090

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.