Conclusions: Arthroscopic debridement is good for early and some mid-term osteoarthritis, and it is the best indication for short duration, a sudden onset and knee swelling, snapping joints, joint locking. 结论关节镜清理术对早期及部分中期骨性关节炎疗效好,对于病程短、突然发病和膝关节肿胀、关节弹响、关节交锁是关节镜清理术的最好指征。