SynthesisKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2022
No difference between mobile and fixed bearing in primary total knee arthroplasty: a meta-analysis.
Synthesis in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 4 of them syntheses that pooled 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.
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.
Who cites it
20 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Continuous femoral nerve block as pain management following total knee arthroplasty: a systematic review.Archives of orthopaedic and trauma surgery · 2025Pooled it
- Factors influencing periprosthetic bone mineral density in total knee arthroplasty: a systematic review.Archives of orthopaedic and trauma surgery · 2024Pooled it
- Comparison of revision rates and epidemiological data of a single total knee arthroplasty system of different designs (cruciate retaining, posterior stabilized, mobile bearing, and fixed bearing): a meta-analysis and systematic review of clinical trials and national arthroplasty registries.Archives of orthopaedic and trauma surgery · 2024Pooled it
- Functional alignment in robotic-assisted total knee arthroplasty: a systematic review.Archives of orthopaedic and trauma surgery · 2024Pooled it
- Improved accuracy of functional alignment restoration with robotic-assisted total knee arthroplasty : A quasi-randomized controlled trial.Orthopadie (Heidelberg, Germany) · 2026Trial
- Less wear in deep-dished mobile compared to fixed bearing total knee arthroplasty of the same design at 5-year follow-up: a randomised controlled model-based Roentgen stereophotogrammetric analysis trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Trial
- Learning curve for robotic-assisted total knee arthroplasty.Journal of orthopaedic surgery and research · 2026Article
- Comparison of efficacy and cost-effectiveness between mobile-bearing and fixed-bearing unicompartmental knee arthroplasty for elderly patients with knee osteoarthritis: a retrospective cohort study.Frontiers in surgery · 2026Article
- Kinematic alignment in total knee arthroplasty restores the native anatomy, with a joint line parallel to the ground on a standing view.Journal of orthopaedics · 2025Article
- Low frequency of radiolucent lines in 3D-printed porous-coated tibial cementless baseplate at 1-year follow-up.Journal of experimental orthopaedics · 2025Article
- Management of Postoperative Pain Following Primary Total Knee Arthroplasty: A Level I Evidence-Based Bayesian Network Meta-Analysis.Pharmaceuticals (Basel, Switzerland) · 2025Review
- Minimum twenty-year follow-up of fixed-vs mobile-bearing total knee arthroplasty: Double blinded randomized trial.Journal of clinical orthopaedics and trauma · 2025Article
- Optimizing outcomes in total knee arthroplasty: the role of patellar resurfacing and tibial ınsert type.Revista da Associacao Medica Brasileira (1992) · 2025Article
- [Digital tools in primary total knee arthroplasty-Prevalence in the German-speaking region].Orthopadie (Heidelberg, Germany) · 2024Article
- Fixed-Bearing and Higher Postoperative Knee Flexion Angle as Predictors of Satisfaction in Asian Patients Undergoing Posterior-Stabilized Total Knee Arthroplasty.Clinics in orthopedic surgery · 2024Article
- Mobile bearing total knee arthroplasty does not lead to better joint awareness compared to fixed bearing design: A systematic review and meta-analysis.Journal of experimental orthopaedics · 2024Review
- Review
- [Research progress on unicompartmental knee arthroplasty for elderly patients with knee osteoarthritis].Zhongguo xiu fu chong jian wai ke za zhi = Zhongguo xiufu chongjian waike zazhi = Chinese journal of reparative and reconstructive surgery · 2024Review
- Comparison of bilateral cementless total knee arthroplasty results between patients in different BMI groups.Archives of orthopaedic and trauma surgery · 2024Article
- BioMAT: An Open-Source Biomechanics Multi-Activity Transformer for Joint Kinematic Predictions Using Wearable Sensors.Sensors (Basel, Switzerland) · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeBoth mobile (MB) and fixed (FB) bearing implants are routinely used for total knee arthroplasty (TKA). This meta-analysis compared MB versus FB for TKA in terms of implant positioning, joint function, patient reported outcome measures (PROMs), and complications. It was hypothesised that MB performs better than FB implants in primary TKA.
methodsThis meta-analysis was conducted according to the 2020 PRISMA statement. In February 2022, the following databases were accessed: Pubmed, Web of Science, Google Scholar, Embase. All the randomized clinical trials (RCTs) comparing mobile versus fixed bearing for primary TKA were considered.
resultsData from 74 RCTs (11,116 procedures) were retrieved. The mean follow-up was 58.8 (7.5 to 315.6) months. The MB group demonstrated greater range of motion (ROM) (P = 0.02), Knee Society Score (KSS) score (P < 0.0001), and rate of deep infections (P = 0.02). No difference was found in implant positioning: tibial slope, delta angle, alpha femoral component angle, gamma femoral component angle, beta tibial component angle, tibiofemoral alignment angle, posterior condylar offset, radiolucent lines. No difference was found in duration of the surgical procedure. No difference was found in the following PROMs: Oxford Knee Score (OKS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), visual analogue scale (VAS), function and pain subscales of the KSS score. No difference was found in the rate of anterior knee pain, revision, aseptic loosening, fractures, and deep vein thrombosis.
conclusionThere is no evidence in support that MB implants promote greater outcomes compared to FB implants in primary TKA. LEVEL OF EVIDENCE: Level I.
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Registered trials
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.