Van Steyn Marlo O, Mariscalco Michael W, Pedroza Angela D, Smerek Jonathan, Kaeding Christopher C, Flanigan David C
Orthopedic One, Columbus, OH, USA.
OrthoVirginia, North Chesterfield, VA, USA.
Knee Surg Sports Traumatol Arthrosc. 2016 May;24(5):1555-9. doi: 10.1007/s00167-014-3497-0. Epub 2014 Dec 30.
Hypermobility of the posterior portion of the lateral meniscus has been reported in several recent case reports and small case series. Pathophysiology and optimal treatment have not been fully elucidated. Our purpose was to evaluate results following arthroscopic stabilization.
Over a 10-year period, 13 knees were diagnosed at the time of arthroscopy as having hypermobility of the posterior portion of the lateral meniscus in the absence of a discrete tear or discoid morphology. Clinical presentation, pre-operative MRI findings, arthroscopic findings, and repair technique were retrospectively reviewed. Most recent outcomes data were gathered via a telephone interview utilizing the IKDC-9 questionnaire.
Eleven of 12 patients presented primarily with mechanical symptoms. Duration of symptoms ranged from 7 months to over 10 years. Eight of 12 patients did not recall any history of trauma. Twelve of 13 pre-operative MRIs did not identify a meniscal tear. Stabilization was obtained by fixation of the meniscus to the posterior capsule by various techniques. Average follow-up was 4 years (range 6 months to 10.7 years). Subjective current knee function averaged 8.0 (range 3.5-10) on a scale of 0-10. Knee pain severity averaged 2.2 (range 0-4) on a scale of 0-10. Pain frequency averaged 3.3 (range 0-9) on a scale of 0-10. Better results were seen in younger patients.
Hypermobility of the posterior portion of the lateral meniscus can successfully be treated with arthroscopic repair to the posterior capsule.
IV.
近期有几例病例报告和小型病例系列报道了外侧半月板后部的活动度过高情况。其病理生理学和最佳治疗方法尚未完全阐明。我们的目的是评估关节镜下稳定术的效果。
在10年期间，13例膝关节在关节镜检查时被诊断为外侧半月板后部活动度过高，且不存在离散性撕裂或盘状形态。对临床表现、术前MRI检查结果、关节镜检查结果和修复技术进行回顾性分析。通过使用IKDC - 9问卷进行电话访谈收集最新的结果数据。
12例患者中有11例主要表现为机械性症状。症状持续时间从7个月到超过10年不等。12例患者中有8例不记得有任何外伤史。13例术前MRI中有12例未发现半月板撕裂。通过各种技术将半月板固定于后关节囊来实现稳定。平均随访时间为4年（范围为6个月至10.7年）。目前主观膝关节功能在0 - 10分的评分中平均为8.0（范围为3.5 - 10）。膝关节疼痛严重程度在0 - 10分的评分中平均为2.2（范围为0 - 4）。疼痛频率在0 - 10分的评分中平均为3.3（范围为0 - 9）。年轻患者的效果更好。
外侧半月板后部活动度过高可通过关节镜下修复至后关节囊成功治疗。
IV级
