Three once-weekly intra-articular injections of Hylan G-F 20 significantly improve pain relief compared with placebo in patients with chronic idiopathic knee osteoarthritis: a single-centre, evaluator-blinded and patient-blinded, randomized controlled trial
This study was conducted to determine the efficacy and safety of three once-weekly injections of intra-articular Hylan G-F 20 in patients with chronic knee osteoarthritis over 26 weeks. It was hypothesized that Hylan G-F 20 would provide significant pain relief with no increased safety risk compared with IA saline (placebo).