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目的 :通过对 2 1例运动员与 43例非运动员膝关节前交叉韧带 (ACL)断裂后并发膝关节软骨损伤的观察 ,分析探讨其损伤继发关节软骨损伤的原因及规律。方法 :应用膝关节镜观察关节软骨损伤的部位、病理改变、损伤程度 ,然后对损伤发生率、发生时间、损伤程度与病程的关系进行对比研究。结果 :软骨损伤总发生率为 75 % ,运动员组为 6 6 7% ,非运动员组为 79% ,非运动员组软骨损伤发生率明显高于运动员组 (P <0 0 1) ,病程超过 1年后关节软骨损伤明显加重 (P <0 0 1) ,但两组间差别不显著 (P >0 0 5 )。结论 :运动员与非运动员ACL断裂后膝关节软骨损伤率明显增高 ,损伤程度随病程延长而加重。ACL断裂后继发关节软骨损伤的主要原因是膝关节不稳
OBJECTIVE: To investigate the causes and patterns of knee cartilage injury after 21 cases of knee arthroplasty (ACL) with 21 cases of athletes and 43 cases of non-athletes. Methods: Arthroscopic cartilage injury site, pathological changes and injury degree were observed by knee arthroscopy. Then the relationship between the injury rate, time, injury degree and course of disease was compared. RESULTS: The total cartilage injury rate was 75%, in the athlete group and in the non-athlete group, the incidence of cartilage injury was significantly higher in the non-athlete group than in the athlete group (P <0.01), and the duration of cartilage injury was more than 1 year Articular cartilage injury was significantly aggravated (P <0.01), but the difference between the two groups was not significant (P> 0.05). Conclusion: The rate of knee joint cartilage injury was significantly increased after ACL rupture in both athletes and non-athletes. The degree of injury aggravated with the prolongation of the course. Secondary rupture of articular cartilage after ACL rupture is mainly due to instability of the knee joint