目的 探究继发性腘窝囊肿在关节镜下实施通道扩大术治疗效果。方法 选择进行继发性腘窝囊肿治疗的100例患者为研究对象,其治疗时间在2016年1月—2019年1月之间,按照随机数字表法将其分成组均50例的对照组以及观察组,对照组予以传统后路腘窝囊肿切除术治疗,观察组在局部麻醉下经关节镜清理关节腔、扩大腘窝囊肿同关节腔之间通道,但不切除囊壁。比较两组患者住院时间以及治疗总有效率。结果 观察组住院时间低于对照组,两组比较存在显著差异（P<0.05）;观察组总有效率高于对照组,两组比较存在显著差异（P<0.05）。结论 继发性腘窝囊肿患者在关节镜下实施通道扩大术,同时不切除囊壁,对患者机体损伤较小,缩短患者住院时间,提升治疗效果。

Objective To study the effect of arthroscopic-assisted channel expansion on secondary popliteal cyst. Methods A total of 100 patients with secondary popliteal cyst patients were investigated from January 2016 to January 2019 and randomly divided into a control group (n=50) and an observation group (n=50). The control group took conventional resection of posterior popliteal cyst; the observation group took the arthroscopic debridement under local anesthesia, channel expansion between cyst and articular cavity, and preservation of cyst wall. Hospital stays and overall treatment effective rate were compared. Results Hospital stays in the observation group were shorter than those in the control group (P<0.05); overall treatment effective rate in the observation group was higher than that in the control group (P<0.05). Conclusion Arthroscopic-assisted channel expansion can preserve cyst wall, reduce clinical trauma and hospital stays, and increase surgical effects.