Arthroscopic debridement of the osteoarthritic knee combined with hyaluronic acid (Orthovisc) treatment: a case series and review of the literature.

Objective: An evaluation of safety and efficacy of high molecular weight hyaluronan (HA) delivered at the time of arthroscopic debridement of the osteoarthritic knee.

Methods: Thirty consecutive patients who met inclusion and exclusion criteria underwent arthroscopic debridement by a single surgeon and concomitant delivery of 6 ml/90 mg HA (Orthovisc). These patients were evaluated preoperatively, at 6 weeks, 3 and 6 months post-operatively.