Study of Association Between Digital Osteoarthritis and Lower Limb Osteoarthritis

Study of the Association Between Digital Osteoarthritis and Lower Limb Osteoarthritis (Knee and Hip) in Terms of Severity and Evolution - Khoala Group Ancillary Project / Cohort Khoala

Among the risk factors for lower limb osteoarthritis, if obesity is probably the most studied, digital osteoarthritis received increasing interest in recent years. Recent publications have highlighted a link between obesity and digital osteoarthritis, but also a very probable link between digital osteoarthritis and structural progression of knee osteoarthritis. Few data including hip exist and need to be confirmed on larger scale studies. We have with "Khoala" a national multiregional cohort of symptomatic gonarthrosis and coxarthrosis representative of the general population (which is rarely the case in the literature) including X ray, clinical and biological follow-up (hips and / or knees).

Inclusion Criteria:

• men or women aged 40 to 75 years
• with symptomatic osteoarthritis of the hip and / or knee (femoro-tibial), unilateral or bilateral
• with a confirmed diagnosis (criteria of the American College of Rheumatology :ACR) and Kellgren and Lawrence radiological stage ≥ 2.

Exclusion Criteria:

• painful hip or knee prosthesis
• osteotomy in the past