Related Experiment Video
Updated: Jul 18, 2026
Fu's Subcutaneous Needling for Knee Osteoarthritis Pain
Published on: March 24, 2023
Is self-reported improvement in osteoarthritis pain and disability reflected in objective measures?
Sindhu R Johnson1, Alison Archibald, Aileen M Davis
1Department of Health Policy, Management and Evaluation, University Health Network, University of Toronto, Toronto, Ontario, Canada.
Objective:
To determine if self-reported improvements in pain and function correlate with improvement in objective measures of disease in osteoarthritis (OA).
Methods:
Individuals with disabling hip/knee OA were assessed 7 years apart by questionnaire [sociodemographics, body mass index, and Western Ontario and McMaster University Osteoarthritis Index (WOMAC) scores] and physical [range of motion (ROM), disease activity based on joint stress pain, erythema, warmth, effusion] and radiographic examination of the hips and knees (Kellgren-Lawrence grade). Changes over time were expressed as improved, unchanged, or worse based on a priori criteria.
Results:
Of 69 eligible patients, 43 (64%) with a mean age of 76.3 years participated; 77% were female. For WOMAC scores, 25% and 19% reported improved pain and function, respectively. For joint ROM, disease activity, and radiographic grade, 0% to 30% of participants were improved. However, improvements in WOMAC scores were not associated with improvements in any of the other measures (r < 0.24 for all).
Conclusion:
One-quarter of participants reported significant improvements in WOMAC pain and disability after 7 years' followup. However, these improvements were not associated with similar improvements in joint ROM, disease activity, or radiographic grade. Greater understanding of the determinants of self-reported improvements in arthritis status, in particular the role of adaptation, is warranted.
