Knee osteoarthritis (KOA) is a progressive and degenerative disease that leads to significant disability for the patient, as well as substantial costs. This article focuses on two recent studies that looked at the relationship between intra-articular hyaluronic acid (IA-HA) treatment in delaying total knee arthroplasty (TKA), and the impact on disease cost.

More than 700 000 TKAs are performed annually in the US to treat knee OA

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