61 THE KNEE PAIN MAP: THE RELIABILITY AND REPRODUCIBILITY OF ASSESSING KNEE PAIN LOCALIZATION AND PATTERNS IN PARTICIPANTS FROM THE OSTEOARTHRITIS INITIATIVE

Abstract

62 – Table 1 OA definitions Hypermobility Non-Hypermobility Odds 95% CI (% OA affected) (% OA affected) Ratio* Hand: Modified ACR criteria 2.6% 15.4% 0.15 0.02–1.12 Hand: Gogo criteria 2.6% 17.8% 0.12 0.02–0.94 Hand: Any single joint involvement by examination 18.4% 42.9% 0.30 0.30–0.71 Knee: ACR criteria 11.1% 34.4% 0.24 0.67–0.85 *Odds of OA compoaring hypermobility to non-hypermobility group; Hand OA data available for n=287; Knee OA data available for n=120. Conclusions: We have successfully demonstrated a system to identify and record the localization and pattern of pain in knee OA with excellent reliability. Knee pain was most often described as localized, with the medial and lateral joint lines as the most commonly reported zones. Only a small minority of patients reported diffuse pain or were unable to localize their knee pain. Additional studies are needed to determine if specific knee pain patterns or locations correlate with known risk factors for knee OA or with areas of pathologic changes seen on x-rays or MRIs in patients with knee OA.