Viscosupplementation for treating knee osteoarthrosis: review of the literature.

The aim here was to evaluate the evidence that might support or refute the use of intra-articular viscosupplementation in treating patients with symptomatic knee osteoarthrosis. A review of the literature was conducted using the Medline, PubMed and Cochrane Controlled Trial Register databases and Cochrane database systematic reviews (Cochrane Library). Only studies presenting a high level of evidence were taken into consideration.