ArticlePloS one2020
Discordance between self-reported and performance-based function among knee osteoarthritis surgical patients: Variations by sex and obesity.
Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07367789 (Prediction of Patient-reported Outcome Measure and Performance-based Measure After Total Knee Arthroplasty Using Instrumented Insoles and Deep Neural Networks), which is not on this map. Cited by 8 papers.
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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.
Prediction of Patient-reported Outcome Measure and Performance-based Measure After Total Knee Arthroplasty Using Instrumented Insoles and Deep Neural Networks
Who cites it
8 citing papers in PubMed, 16 citations in OpenAlex.
- Recovery of daily-life walking after total knee arthroplasty: A two-year longitudinal study and comparison with healthy controls.Osteoarthritis and cartilage open · 2026Article
- Distinct Roles of Muscle Strength and Postural Stability in Objective and Subjective Function in Women with Bilateral Knee Osteoarthritis.Healthcare (Basel, Switzerland) · 2026Article
- Exploring the impact of waiting time on physical function and psychosocial measures in individuals with lower limb osteoarthritis awaiting orthopaedic consultation.Journal of health psychology · 2026Article
- What matters in rehabilitation: a mixed methods study of critical success factors from the perspectives of patients and healthcare professionals.European journal of translational myology · 2025Article
- Comparative assessment of a virtual performance measure with self-report and performance-based outcomes in patients with hip osteoarthritis.BMC musculoskeletal disorders · 2025Article
- Self-assessed performance-based function test versus patient-reported outcome measures for knee and hip osteoarthritis.BMC sports science, medicine & rehabilitation · 2024Article
- Association of body composition and physical activity with pain and function in knee osteoarthritis patients: a cross-sectional study.BMJ open · 2024Article
- Validity of the Osteoarthritis Research Society International (OARSI) recommended performance-based tests of physical function in individuals with symptomatic Kellgren and Lawrence grade 0-2 knee osteoarthritis.BMC musculoskeletal disorders · 2022Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThere is currently no standardized method for measuring functional status in knee osteoarthritis (OA) patients, despite that it is one of the top priorities when determining eligibility for total knee arthroplasty (TKA). The purpose of the current investigation was to identify factors associated with discordance between individual self-report and performance-based measures of function for obese and non-obese men and women with knee OA.
methodsIn a cohort of 727 knee OA patients scheduled for TKA, physical function prior to surgery was assessed with the self-reported physical function subscale of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC-pf), and the performance-based Timed Up and Go (TUG). Data on sociodemographic characteristics, health status, knee pain intensity, symptomatic joint site count, and pain catastrophizing were collected via questionnaire. The primary outcome was the difference in rescaled score between a participant's self-report and performance-based measures of function. Multivariable linear regression stratified by sex and obesity status was used to identify factors associated with discordance.
resultsThe mean age of participants was 65.5 years and 55% were women. With younger age, self-reported scores indicated increasingly worse function compared to performance-based scores, regardless of sex or obesity status. Among non-obese individuals, greater knee pain intensity was associated with a participant's self-report score indicating increasingly worse function compared to their performance-based score. For obese women, pain catastrophizing, and number of symptomatic joints were also associated with discordance as was reporting fewer comorbidities.
conclusionsPhysical function may be differentially represented by self-reported and performance-based measures depending on a variety of patient factors. Our findings add to the evidence which suggests both measures should be used when assessing functional status prior to TKA.
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