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目的 探讨关节镜清理术治疗膝关节骨关节炎(OA)的疗效.方法 在关节镜下行选择性、有限关节清理术76例,按Lysholm膝关节评分标准对92膝术前、术后6个月、1、2年进行评分.结果 92膝膝关节术前Lysholm评分(44.78±8.79)分,术后6个月、1、2年综合评分分别为(77.08±8.34)分、(76.38±8.74)分和(69.60±10.44)分,均较术前明显提高(P<0.05).术后2年的评分明显低于术后6个月和1年(P<0.05).结论 关节镜清理术治疗膝关节骨关节炎能够减轻疼痛、改善功能,2年内疗效好.“,”Objective To investigate the curative effect of arthroscopic debridement on knee osteoarthritis. Methods Retrospective analysis was performed in 92 knee joints(76 patients) with knee ostearthritis, which underwent selective and limited invasive debridement under arthroscope. The Lysholm knee scores were recorded before and after operation. Results The Lysholm knee scores for 6-month, 1- and 2-year after surgery were (77. 08 ± 8. 34)scores, (. 76. 38±8. 74)scores and(69. 60± 10. 44)scores, respectively, which were all higher than (44. 78±8. 79) scores before (P<0. 05). The Lysholm knee score of 2-year was lower than that of 6-month or that of 1-year (P<0. 05). Conclusion Arthroscopic debridement can effectively reduce pain and improve knee function, especially in 2 years in the patients with knee osteoarthritis.