Trial reportInternational orthopaedics2010
Functional outcome of PFC Sigma fixed and rotating-platform total knee arthroplasty. A prospective randomised controlled trial.
Trial report in International orthopaedics, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 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
25 citing papers in PubMed, 5 syntheses or guidelines pooled it, 47 citations in OpenAlex.
- No difference between mobile and fixed bearing in primary total knee arthroplasty: a meta-analysis.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Pooled it
- Mobile-bearing versus fixed-bearing total knee arthroplasty: a meta-analysis of randomized controlled trials.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2022Pooled it
- Mobile bearing vs fixed bearing prostheses for posterior cruciate retaining total knee arthroplasty for postoperative functional status in patients with osteoarthritis and rheumatoid arthritis.The Cochrane database of systematic reviews · 2015Pooled it
- Rotating-platform TKA no different from fixed-bearing TKA regarding survivorship or performance: a meta-analysis.Clinical orthopaedics and related research · 2014Pooled it
- What is the optimal time point to assess patient-reported recovery after hip and knee replacement? A systematic review and analysis of routinely reported outcome data from the English patient-reported outcome measures programme.Health and quality of life outcomes · 2013Pooled it
- Mobile- vs. fixed-bearing total knee replacement.Acta orthopaedica · 2015Trial
- Similar TKA designs with differences in clinical outcome: a randomized, controlled trial of 77 knees with a mean follow-up of 6 years.Acta orthopaedica · 2011Trial
- Mobile-Bearing versus Fixed-Bearing Total Knee Arthroplasty: A Comparative Analysis of Long-Term Clinical and Implant Survival Outcomes.Revista brasileira de ortopedia · 2025Article
- [Mobile-Bearing versus Fixed-Bearing Total Knee Arthroplasty: A Comparative Analysis of Long-Term Clinical and Implant Survival Outcomes].Revista brasileira de ortopedia · 2025Article
- Comprehensive evaluation of risk factors for aseptic loosening in cemented total knee arthroplasty: A systematic review and meta-analysis.Journal of experimental orthopaedics · 2024Review
- Saw-box osteotomy versus reamer-box osteotomy in posterior stabilized total knee arthroplasty: a retrospective study of an average five year follow-up.International orthopaedics · 2024Article
- 10-year follow-up of the Columbus knee prostheses system in a prospective multicenter study.Archives of orthopaedic and trauma surgery · 2022Article
- [5-year follow-up of 210 Columbus knee prostheses : A prospective multicentre study].Der Orthopade · 2018Article
- Increased risk of aseptic loosening for 43,525 rotating-platform vs. fixed-bearing total knee replacements.Acta orthopaedica · 2017Article
- No differences between fixed- and mobile-bearing total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2017Review
- Posterior-stabilized total knee arthroplasty: a matched pair analysis of a classic and its evolutional design.Arthroplasty today · 2016Article
- Total versus unicompartmental knee replacement for isolated lateral osteoarthritis: a matched-pairs study.International orthopaedics · 2014Article
- Primary posterior stabilized total knee arthroplasty: analysis of different instrumentation.Journal of orthopaedic surgery and research · 2014Article
- Comparison of fixed- and mobile-bearing total knee arthroplasty with a mean five-year follow-up: A meta-analysis.Experimental and therapeutic medicine · 2013Article
- Factors affecting range of motion in total knee arthroplasty using high flexion prosthesis: A prospective study.Indian journal of orthopaedics · 2013Article
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 at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to determine whether there is a difference in functional outcome between the PFC Sigma fixed-bearing and rotating-platform total knee replacement systems. One hundred twenty patients were randomised to receive either a fixed-bearing or rotating-platform PFC Sigma total knee replacement. Range of movement (ROM), Oxford knee score (OKS) and Knee Society score (KSS) were assessed independently before and one year after surgery. Weight-bearing X-rays were taken immediately and one year post surgery to determine the incidence of osteolysis and loosening. At a mean follow-up of 13.4 months there was no statistically significant difference in mean ROM, OKS and KSS between the two groups. There was no evidence of osteolysis or loosening in either of the groups and no revision for infection or implant failure. This study shows that there is no statistically significant difference in functional outcome between the two types of implants at short-term follow-up.
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What OpenQuestion holds
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.