ArticleBMC musculoskeletal disorders2020
Minimal important differences for the WOMAC osteoarthritis index and the Forgotten Joint Score-12 in total knee arthroplasty patients.
Article in BMC musculoskeletal disorders, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.
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Who cites it
36 citing papers in PubMed.
- Assessment of improvement in functional outcomes between a novel knee replacement design and conventional designs in 240 patients: a randomized controlled trial.Acta orthopaedica · 2025Trial
- The use of tourniquet in total knee arthroplasty does not impact the functional outcome: a randomised controlled study.Journal of orthopaedic surgery and research · 2024Trial
- Similar outcome with a new anteverted or a straight standard stem: a randomized study of 72 total hip arthroplasties evaluated with clinical variables, radiostereometry, and DXA up to 2 years.Acta orthopaedica · 2022Trial
- Comparative outcomes of total knee arthroplasty in patients with posttraumatic versus primary knee osteoarthritis.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026Article
- Magnitude of intraoperative femoral rotational adjustment from the initial plan is associated with slower early recovery after robotic-assisted functional-alignment TKA.Journal of robotic surgery · 2026Article
- Exploratory Spinopelvic Compensation Patterns Are Associated with a Strict Composite 12-Month MCID Endpoint After Total Knee Arthroplasty: A Retrospective Risk-Stratification Study.Medicina (Kaunas, Lithuania) · 2026Article
- Gait Biomechanics, Symmetry Restoration, and Functional Recovery Following Total Knee Arthroplasty: A Prospective Longitudinal Cohort Study.Life (Basel, Switzerland) · 2026Article
- Comparable clinical outcomes in functionally aligned computer-assisted and image-based robotic assisted total knee arthroplasty.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2026Observational
- Pain distribution and functional outcomes after lateral unicompartmental versus total knee arthroplasty for isolated lateral compartment osteoarthritis with anterior knee pain.Frontiers in medicine · 2026Article
- Anatomically-designed bicruciate-retaining total knee arthroplasty demonstrates good two-year survivorship and improvements in patient-reported outcomes: A prospective multicenter single-arm study.Journal of experimental orthopaedics · 2025Article
- Combining radiomics of X-rays with patient functional rating scales for predicting satisfaction after radial fracture fixation: a multimodal machine learning predictive model.BMC musculoskeletal disorders · 2025Article
- Functional Burden and Quality of Life in Hip and Knee Osteoarthritis: A Cross-Sectional Study.Medicina (Kaunas, Lithuania) · 2025Article
- Objectively measured activity behaviours using the ActivPAL accelerometer following robotic and manually performed total knee arthroplasty : a feasibility study from a randomized controlled trial (ROAM study).Bone & joint research · 2025Article
- Functional outcome comparison of single-radius and multi-radius femur in total knee arthroplasty.Acta orthopaedica et traumatologica turcica · 2025Article
- The Influence of an Eight-Week Home Exercise Program on Spatiotemporal and Kinetic Characteristics of Gait and Knee Function in Women with Severe Knee Osteoarthritis Scheduled for Arthroplasty.Medicina (Kaunas, Lithuania) · 2025Article
- Pathological Site Pain During Injections as a Predictive Sign for Clinical Response in Autologous Protein Solution and Hyaluronic Acid Injections for Knee Osteoarthritis.Journal of clinical orthopaedics and trauma · 2025Article
- Patient-reported outcome 1 to 4 years after periprosthetic knee fracture: a nationwide cross-sectional matched study.Acta orthopaedica · 2025Article
- Article
- Patient-Reported Outcomes in Robotic-Assisted vs Manual Cementless Total Knee Arthroplasty.Arthroplasty today · 2024Article
- Early insights from the routine use of patient reported outcome measures in elective hip and knee arthroplasty at a public teaching hospital in South Australia.Journal of patient-reported outcomes · 2024Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTotal knee arthroplasty (TKA) is an effective treatment for end-stage osteoarthritis. Patient reported-outcome measures (PROMs) capture the patients' perception of the success of an intervention. The minimal important difference (MID) is an important characteristic of the PROM, which helps to interpret results. The aim of this study was to identify the MID for the Forgotten Joint Score-12 (FJS-12) and Western Ontario and McMaster Universities (WOMAC) osteoarthritis index.
methodsData were collected in a prospective cohort study. Patients were asked to complete the FJS-12, WOMAC osteoarthritis index and transition items evaluating change over time to determine the MID. We employed an anchor-based methodology relating score change to the response categories of the transition items using both binary logistic regression and receiver operating characteristic (ROC) analysis.
resultsData from 199 patients were analysed. Mean age was 72.3 years, 58% were women. Employing binary logistic regression the MID for the FJS-12 was 10.8 points, for the WOMAC pain score 7.5 points and for the WOMAC function score 7.2 points. ROC analyses found a MID of 13.0 points for the FJS-12, 12.5 points for WOMAC pain and 14.7 points for WOMAC function.
conclusionWe report MIDs for the FJS-12 and the WOMAC Pain and Function scales in a TKA patient cohort, which can be used to interpret meaningful differences in score. In line with previous research, we found more advanced statistical methods to result in smaller MID estimates for both scores.
trial registrationWritten consent for this study was obtained from all participants and ethical approval was granted by the local ethics committee (Ethikkommission St. Gallen; EKSG 14/973; Registered 03 July 2014; http://www.sg.ch/home/gesundheit/ethikkommission.html).
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