A randomized, single-blind comparison of the efficacy and tolerability of hylan G-F 20 and triamcinolone hexacetonide in patients with osteoarthritis of the knee.

Objective: To assess prospectively the efficacy and tolerability of hylan G-F 20 (HG-F 20; Synvisc) and intraarticular triamcinolone hexacetonide (TH; Aristospan) for treatment of osteoarthritis (OA) knee pain in a 26 week, randomized, multicenter, evaluator-blind study.

Methods: Patients with OA were treated with typical regimens of HG-F 20 (n = 113) and TH (n = 102). Primary assessments were the WOMAC question A1 (pain walking on a flat surface), and a 100 mm visual analog scale (VAS) for patient and investigator overall assessments.