| http://www.w3.org/ns/prov#value | - The knee is the most common weight-bearing joint affected by osteoarthritis or degenerative joint disease, a major cause of disability in the U.S. The Centers for Disease Control and Prevention (CDC) estimate that 26.9 million U.S. adults are affected by OA with 16% (aged 45+ years) of those cases occurring in the knee.
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