Objective

To identify and summarize literature related to the association between mechanical symptoms (catching and locking of the knee), the presence of meniscal tear, and outcomes after arthroscopic surgery.

Design

We searched PubMed and hand-searched reference lists for relevant articles and selected 38 for analysis.

Results

Mechanical symptoms appear to have modest sensitivity (ranging 0.32–0.69), specificity (ranging 0.45–0.74) and positive predictive value (ranging 0.75–0.81) for meniscal tear. There is also very little evidence to suggest that those with mechanical symptoms experience better outcomes after arthroscopic surgery.

Conclusion

Our examination of the literature does not support the hypothesis that mechanical symptoms are related to the presence of meniscal tear or portend better outcomes after arthroscopic surgery.

中文翻译：

---

机械症状和半月板撕裂：重新评估

客观的

识别和总结与机械症状（膝关节卡住和锁定）、半月板撕裂的存在和关节镜手术后结果之间的关联相关的文献。

设计

我们搜索了 PubMed 并手动搜索了相关文章的参考列表，并选择了 38 篇进行分析。

结果

机械症状似乎对半月板撕裂具有适度的敏感性（0.32-0.69）、特异性（0.45-0.74）和阳性预测值（0.75-0.81）。也很少有证据表明那些有机械症状的人在关节镜手术后会获得更好的结果。

结论

我们对文献的审查不支持机械症状与半月板撕裂的存在或预示关节镜手术后更好的结果有关的假设。