Patterns of knee osteoarthritis in a hospital setting in sub-Saharan Africa.

Osteoarthritis (OA), the most prevalent joint disease in adults, ranks among the top 5 causes of disability. The burden of OA is expected to be greater in developing countries, where life expectancy is increasing and access to joint replacement therapy is not readily available. Risk factors associated with knee OA in Africa may differ from those identified in other parts of the world.