SICHUAN PROVINCE ORTHOPEDIAC HOSPITAL
目的：介绍改良镜下技术治疗外侧半月板囊肿的手术技术和初步临床结果。 方法：回顾性分析2017年至2018年我科收治的膝关节外侧半月板囊肿共120例，所有患者均采用改良镜下技术治疗：半月板水平撕裂处半月板下表面予以切除行囊液内引流加经滑膜缘囊壁组织彻底切除，采用Lysholm膝关节功能评分、Tegner评分进行临床疗效评估，术后3天内及末次随访的MRI评估囊肿复发情况。 结果：术后120例均获得随访，平均随访34月。术后3天内复查MRI显示115例（95.8%）患者半月板囊肿已完全切除，全部患者包括5例囊肿部分残留患者末次随访复查MRI示囊肿无复发，术后末次随访Lysholm评分及Tegner评分分别为（88.82±3.46）分、（5.92±0.72）分，较术前(56.21±7.51)分、（3.74±.64）分比较差异有统计学意义(T1=47.99,P<0.001；T2 =57.33, P<0.001)。 结论：这种改良关节镜技术治疗膝关节外侧半月板囊肿，能最大限度的切除囊肿及囊壁组织，术后膝关节功能恢复好、囊肿复发率低，值得临床推广应用。
Objective: To introduce the surgical technique and preliminary clinical effect of a modified arthroscopy technique in the treatment of lateral meniscus cyst of knee joint. Methods: Retrospectively analyzed from January 2017 to December 2018, admitting in our department for the treatment of lateral meniscus cyst. A total of 120 cases were treated with a modified arthroscopy technique：resection the lower surface of the meniscus of teared meniscus to drain cyst fliud,and trans-synovial cyst wall tissue completely resection.Lysholm knee function score and Tegner score used for clinical knee function evaluation, and MRI within 3 days after surgery and at the last follow-up was used to evaluate the recurrence of cysts. Results: 120 patients were mean followed up for 34months. Postoperative MRI showed cyst has been completely resected in 115 cases (95.8%). The last follow-up MRI showed no cyst recurred in all patients including the 5 cases of whose cyst were still part existed. Lysholm scale and Tegner score at the last follow-up were respectively (88.82±3.46)、(5.92±0.72), compared with preoperative (56.21±7.51)、(3.74 ±64), were statistically significant (T1 = 47.99, P < 0.001;T2 = 57.33, P < 0.001). Conclusion: The modified arthroscopy technique in the treatment of lateral meniscus cyst of knee joint can maximize the resection of cyst and cyst wall tissue, the postoperative knee joint function recovers well, and the postoperative recurrence rate is low, which is worthy for clinical application.