Trial reportKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2017
Better functional outcome after single-radius TKA compared with multi-radius TKA.
Trial report in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.
What it found
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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
13 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- Comparison of Single-Radius with Multiple-Radius Femur in Total Knee Arthroplasty: A Meta-Analysis of Prospective Randomized Controlled Trials.Orthopaedic surgery · 2022Pooled it
- The Time Course of Quadriceps Strength Recovery After Total Knee Arthroplasty Is Influenced by Body Mass Index, Sex, and Age of Patients: Systematic Review and Meta-Analysis.Frontiers in medicine · 2022Pooled it
- Trial
- Does Achieving the Minimal Clinically Important Difference in the Knee Injury and Osteoarthritis Outcome Score for Joint Replacement at 1 Year Postoperative Predict Satisfaction Following Total Knee Arthroplasty?Arthroplasty today · 2025Article
- Functional outcome comparison of single-radius and multi-radius femur in total knee arthroplasty.Acta orthopaedica et traumatologica turcica · 2025Article
- Fragility Index as a Measure of Randomized Clinical Trial Quality in Adult Reconstruction: A Systematic Review.Arthroplasty today · 2021Article
- Better clinical outcomes and overall higher survival with hybrid versus cemented primary total knee arthroplasty: a minimum 15 years follow-up.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Article
- Comparison of functional outcomes between single-radius and multi-radius femoral components in primary total knee arthroplasty: a meta-analysis of randomized controlled trials.Knee surgery & related research · 2020Review
- Alterations of kinematics in knees after single versus multiple radius femoral prostheses total knee arthroplasty: a retrospective study.BMC musculoskeletal disorders · 2020Article
- Satisfaction after total knee replacement for osteoarthritis is usually high, but what are we measuring? A systematic review.Osteoarthritis and cartilage open · 2020Review
- Better quadriceps and hamstring strength is achieved after Total knee Arthroplasty with single radius femoral prostheses: a retrospective study based on isokinetic and isometric data.Arthroplasty (London, England) · 2020Article
- Valgus position of the femoral component causes abnormal kinematics in the presence of medial looseness in total knee arthroplasty: a computer simulation model of TKA for valgus knee osteoarthritis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Article
- Excellent 10-year patient-reported outcomes and survival in a single-radius, cruciate-retaining total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo determine whether the design of the femoral component influenced patient outcomes.
methodsTwo hundred and thirty-seven patients were randomized to compare functional outcomes between single-radius TKA (SR, 118 patients) and multi-radius TKA (MR, 119 patients) with a minimum follow-up of 5 years. Prospective pre- and postoperative assessments were performed by the clinical and radiological criteria of the Knee Society Score (KSS), WOMAC and Short-Form 12 (SF12) questionnaires. The extension mechanism was assessed based on the quadriceps strength and chair test. Patient satisfaction was also assessed.
resultsThe median follow-up was 5.7 (range 5-7) years. At last follow-up, significant better KSSs (p = 0.001), range of motion (p = 0.001), extension lag (p = 0.020), quadriceps strength (p = 0.004), chair test (p = 0.032) and WOMAC pain (p = 0.002) were found in the SR group. Moreover, the improvements of these variables were early in the SR group (from 6 postoperative months). There were no significant differences in WOMAC function or SF12 physical and mental components. The revision rate and implant survival were similar in both groups. Satisfaction rate was significantly higher in SR group (p = 0.032).
conclusionThis study shows better results with SR cruciate-retaining femoral component than MR component. The use of SR system is recommended because, although the clinically relevant differences were moderate, the functional improvement was earlier and the patient satisfaction higher with this design. LEVEL OF EVIDENCE: Therapeutic study, 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.