Evidence map›Paper›PMID 33154502›Full record

SynthesisScientific reports2020

Fixed- versus mobile-bearing unicompartmental knee arthroplasty: a meta-analysis.

Wenchao Zhang, Jianpeng Wang, Hui Li, Wanchun Wang, Daniel M George, Tianlong Huang

Abstract readComparative StudyMeta-AnalysisSystematic Review
PubMed Full text at PMC Publisher
In one paragraph

Synthesis in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 6 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

22 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
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  5. Impact of age on unicompartmental knee arthroplasty outcomes: a systematic review and meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023
    Pooled it
  6. Pooled it
  7. No difference in mobile and fixed bearing partial knee arthroplasty in octogenarians: a clinical trial.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2023
    Trial
  8. Trial
  9. Article
  10. Article
  11. Unicompartmental Knee Arthroplasty: Mobile-bearing or Fixed-bearing?The archives of bone and joint surgery · 2026
    Article
  12. Article
  13. Article
  14. Article
  15. [Effect of anterior cruciate ligament integrity on the short- and mid-term effectiveness of mobile-bearing medial unicompartmental knee arthroplasty].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024
    Article
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  17. Review
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  20. Review
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

6 authors.

Wenchao ZhangDepartment of Orthopaedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.
Jianpeng WangDepartment of Orthopaedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.
Hui LiDepartment of Orthopaedics, Honghui Hospital, Xi'An Jiaotong University, Xi'an, Shanxi, People's Republic of China.
Wanchun WangDepartment of Orthopaedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China.
Daniel M GeorgeDepartment of Orthopaedics, Royal Adelaide Hospital, Adelaide, Australia.
Tianlong HuangDepartment of Orthopaedics, The Second Xiangya Hospital, Central South University, No.139 Middle Renmin Road, Changsha, Hunan, 410011, People's Republic of China. tianlong.huang@csu.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Unicompartmental knee arthroplasty (UKA) can be either a fixed bearing (FB) or a mobile bearing (MB) construct with controversy as to which design is superior. This question is addressed with a systematic review and meta-analysis. A literature search was performed using PubMed, Embase and the Cochrane Library. Studies were reviewed according to the inclusion and exclusion criteria developed in advance. We compared the differences in clinical and radiological outcomes between the FB and MB UKAs. Analyses were performed with the Review Manager and STATA software. A total of 17 studies involving 2612 knees were included. No significant differences were presented between the FB and MB prostheses in clinical and radiological outcomes. However, it was evident that there were differences in the modes and timing of the failures, bearing dislocation led to earlier failures in the MB prosthesis, while the FB prosthesis failed later due to polyethylene wear. There was no evidence of publication bias using the incidence of revisions. There is no significant difference between the FB and MB UKAs; however, there are differences in the modes and timing of failures.

Indexed as

Knee ProsthesisArthroplasty, Replacement, KneeHumansOsteoarthritis, KneeProsthesis DesignProsthesis FailureReoperationTreatment Outcome

Identifiers

PMID33154502
PMCPMC7645610

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.