SynthesisKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2015
Fixed- versus mobile-bearing UKA: a systematic review and meta-analysis.
Synthesis 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 48 papers, 5 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
48 citing papers in PubMed, 5 syntheses or guidelines pooled it.
- Stair negotiation following unicompartmental knee arthroplasty: a systematic review of biomechanical outcomes.Archives of orthopaedic and trauma surgery · 2026Pooled it
- Cementless unicompartmental knee replacement achieves better ten-year clinical outcomes than cemented: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Pooled it
- Fixed- versus mobile-bearing unicompartmental knee arthroplasty: a meta-analysis.Scientific reports · 2020Pooled it
- Lateral unicompartmental knee replacement: a systematic review of reasons for failure.International orthopaedics · 2018Pooled it
- Sport and physical activity following unicompartmental knee arthroplasty: a systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017Pooled it
- Knee Scores of Patients with Non-Lateral Compartmental Knee Osteoarthritis Undergoing Mobile, Fixed-Bearing Unicompartmental Knee and Total Knee Arthroplasties: A Randomized Controlled Trial.Orthopaedic surgery · 2022Trial
- Robotic arm-assisted versus conventional medial unicompartmental knee arthroplasty: five-year clinical outcomes of a randomized controlled trial.The bone & joint journal · 2021Trial
- Equal tibial component fixation of a mobile-bearing and fixed-bearing medial unicompartmental knee arthroplasty: a randomized controlled RSA study with 2-year follow-up.Acta orthopaedica · 2019Trial
- The effect of mechanical axis correction on clinical outcomes after unicondylar knee arthroplasty.BMC musculoskeletal disorders · 2026Article
- Current concepts of medial unicompartmental knee replacement: part 2-hot topics and further directions.Archives of orthopaedic and trauma surgery · 2026Review
- Unicompartmental Knee Arthroplasty: Mobile-bearing or Fixed-bearing?The archives of bone and joint surgery · 2026Article
- Indications of unicompartmental knee arthroplasty and high tibial osteotomy would be different to achieve successful long-term outcome.Knee surgery & related research · 2025Article
- Mobile Versus Fixed-Bearing in Medial Unicompartmental Knee Arthroplasty: An Average 10-Year Follow-Up.Journal of clinical medicine · 2025Article
- Patient-specific versus off-the-shelf unicompartmental knee arthroplasty during level walking.Journal of experimental orthopaedics · 2025Article
- Coronal plane changes in fixed- versus mobile-bearing unicompartmental knee replacements: Clinical and revision outcomes.Journal of experimental orthopaedics · 2025Article
- A finite element analysis of patellofemoral joint biomechanics: Exploring potential causes of postoperative anterior knee pain following unicompartmental knee arthroplasty.Journal of orthopaedics · 2025Article
- Robotic-Assisted Medial Unicompartmental Knee Arthroplasty Provides Better FJS-12 Score and Lower Mid-Term Complication Rates Compared to Conventional Implantation: A Systematic Review and Meta-Analysis.Journal of personalized medicine · 2024Review
- Effect of design and surgical parameters variations in mobile-bearing versus fixed-bearing unicompartmental knee arthroplasty: A finite element analysis.Journal of experimental orthopaedics · 2024Article
- Lateral unicompartmental knee arthroplasty: is really a good option?Archives of orthopaedic and trauma surgery · 2024Article
- Combined assessment of acetabular coverage and femoral head-neck shapes predicts osteoarthritis progression after periacetabular osteotomy.Archives of orthopaedic and trauma surgery · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTwo design concepts are currently used for unicondylar knee arthroplasty (UKA) prostheses: fixed bearing (FB) and mobile bearing (MB). While MB prostheses have theoretical advantages over their FB counterparts, it is not clear whether they are associated with better outcomes. A systematic review was conducted to examine survivorship differences and differences in failure modes of between FB and MB designs.
methodsPubMed, Scirus and Cochrane library databases were searched for medial UKA outcome studies. A total of 44 papers, involving 9,463 knees, were eligible. Outcomes examined included knee function, survivorship and the reasons for, and incidence of, revision for FB and MB prostheses. Random effects meta-analysis was employed to obtain pooled revision rate estimates. Where available, cause-specific time to revision was extracted.
resultsMean follow-up was 8.7 years for FB and 5.9 years for MB prostheses. There were no other relevant baseline differences. The overall crude revision rate for FB and for MB prostheses was 0.90 (95 % confidence interval (CI) 0.65-1.21) and 1.51 (95 % CI 1.11-1.93) per 100 component years, respectively. After stratification on follow-up time and age, the revision rates were not substantially different, aside for younger patients in short term from studies with short-term follow-up.
conclusionNo essential differences between the two designs were observed. MB and FB UKA designs have comparable revision rates. As our study is based on predominantly observational data, with large variations in reporting standards, inferences should be drawn with caution. LEVEL OF EVIDENCE: IV.
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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.