Arthroscopy as a treatment for knee osteoarthritis.

Since surfaces become irregular and debris from cartilage and meniscus gets released into the joint cavity of osteoarthritic joints, washing away this debris and attendant crystals, smoothing rough surfaces and repairing tears might help patients with disease. Such interventions are accomplished during an arthroscopy, when a fibre-optic endoscope and surgical instruments are inserted into the knee. While initial uncontrolled case series suggested that arthroscopy alleviated pain in patients with osteoarthritis, large randomised trials have suggested that arthroscopy has a limited role as a treatment of osteoarthritis. Copyright 2009 Elsevier Ltd. All rights reserved.