Evaluation of the effect of Lake Hévíz thermal mineral water in patients with osteoarthritis of the knee: a randomized, controlled, single-blind, follow-up study.

Background: Osteoarthritis is the most frequent joint disease and is a leading cause of pain and locomotor disability in elderly people. The treatment of osteoarthritis includes non-pharmacological, pharmacological, and surgical therapies. Silver level evidence has been found concerning balneotherapy in osteoarthritis.