ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2017
Predictive values of WOMAC, KOOS, and SF-12 score for knee arthroplasty: data from the OAI.
Article 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 10 papers.
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Who cites it
10 citing papers in PubMed.
- Stance-phase kinematic descriptors differentiate clinical subgroups in women with moderate knee osteoarthritis.Frontiers in bioengineering and biotechnology · 2026Article
- Prospective Comparison of Short-Term Outcomes in Kinematic and Mechanical Alignment Total Knee Arthroplasty.Clinics and practice · 2025Article
- The role of sex, age, and BMI in treatment decisions for knee osteoarthritis: conservative management versus total knee replacement.Journal of orthopaedic surgery and research · 2025Article
- Exploring the potential of the sit-to-stand test for self-assessment of physical condition in advanced knee osteoarthritis patients using computer vision.Frontiers in public health · 2024Article
- Partner and Relationship Predictors of Longitudinal Physical Activity Trajectories Among Individuals with Osteoarthritis Using Latent Class Growth Analysis.Annals of behavioral medicine : a publication of the Society of Behavioral Medicine · 2022Observational
- Proposal for a Scientifically Correct and Medically Actionable Disease Classification System (ICD) for Obesity.Obesity (Silver Spring, Md.) · 2020Review
- Determination of normal KOOS and WOMAC values in a healthy population.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Article
- Correlation between Single Assessment Numerical Evaluation score and Lysholm score in primary total knee arthroplasty patients.Arthroplasty today · 2018Article
- The effect of primary total knee arthroplasty on the incidence of falls and balance-related functions in patients with osteoarthritis.Scientific reports · 2017Article
- Validity and Responsiveness of the Knee Injury and Osteoarthritis Outcome Score: A Comparative Study Among Total Knee Replacement Patients.Arthritis care & research · 2017Article
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Authors and funding
6 authors.
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Abstract
purposeA number of validated scores are available to monitor clinical outcome after knee arthroplasty. The current study examines whether WOMAC, KOOS, or SF-12 scores have a predictive value to identify patients that require total knee arthroplasty within 1 year.
methodsThe Osteoarthritis Initiative includes 4684 patients in two groups: incidence subcohort (Group A, n = 3284) and progression subcohort (Group B, n = 1400). A total of 278 patients reached the endpoint "unilateral knee replacement" (Group A = 96; Group B = 182). WOMAC, KOOS, and SF-12 scores at the maximum of 12 months prior to surgery were used to analyse predictive values. ROC analysis and the diagnostic accuracy for these scores were reported.
resultsGroup A: WOMAC and KOOS score as well as the "physical component summary" of SF-12 showed an area under the curve (AUC) between 0.8 and 0.9 (high diagnostic evidence) to predict total knee replacement. The KOOS "symptoms" (0.67) and SF12 "function" (0.79) showed lower values. The KOOS QoL score showed the highest predictive value with an AUC of 0.84 (CI 95% 0.77-0.91, p < 0.001) resulting in a sensitivity of 0.88 and a specificity of 0.72. Similar numbers were achieved by the total WOMAC score with an AUC of 0.85 (CI 95% 0.82-0.88, p < 0.001) resulting in a sensitivity of 0.77 and a specificity of 0.82. The SF-12 physical component score had an AUC of 0.83 (CI 95% 0.79-0.87, p < 0.001) resulting in a sensitivity of 0.87 and a specificity of 0.68. Different combinations of scores increase the positive likelihood ratio (up to 18) and specificity (up to 0.97). Group B scores showed lower AUCs, sensitivities and specificities.
conclusionsCombinations of WOMAC, KOOS, or SF-12 scores accurately predict patients that require knee arthroplasty within 1 year. In addition to other clinical parameters (physical examination, radiographs), they can guide patient and surgeon during the treatment of arthritis of the knee. LEVEL OF EVIDENCE: II.
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