腓肠肌外侧头纤维化钙化与膝及小腿后外侧疼痛

Fiber Calcification of Lateral Head of Gastrocnemius and Posterolateral Knee and Leg Pain

目的：探讨腓肠肌外侧头纤维化、钙化引起膝后及小腿后外侧疼痛的临床特点及治疗方法。方法：收集腓肠肌外侧头纤维化、钙化导致膝及小腿后外侧疼痛病例25例（28侧），其中侧位X线片于股骨外侧髁后部可见明显的小豆骨22侧，仅见小钙化点6侧；均行钙化或纤维化组织包块切除，腓总神经探查松解术。结果：全部病例随访6-24个月，平均12个。术后静态及动态一过性足下垂及小腿下段与足背麻木症状消失，膝关节后外侧疼痛消失或明显缓解。结论：腓肠肌外侧头纤维化钙化是膝后外疼痛的重要原因，大多伴有腓总神经受损症状，目前对其认识欠缺，误诊率高，手术切除纤维化钙化包块、选择松解受累的腓总神经效果确切。

Objective：To investigate the clinical features and treatment for posterolateral knee and leg pain caused by fibrosis and calcification of lateral head of gastrocnemius. Methods： Patients with posterolateral knee and leg pain caused by fibrosis and calcification of lateral head of gastrocnemius 25 cases （28 sides） were collected. Lateral X - ray showed obvious small os fabella 22 cases or only faint small calcification 6 cases pos- term femur lateral condyle. Results ： All cases underwent 6 - 24 months follow - up （ average of 12 months ） . Static and dynamic common peroneal nerve damage symptoms disappeared after operation, posterolateral knee pain disappeared or relieved significantly. Conclusions ： Fibrosis and calcification of lateral head of gastrocnemi- us is the main reason of posterolateral knee pain, most accompany with common peroneal nerve damage symp- toms. At present, false negative rate is fairly high due to lack of knowledge about this disease. Resection of fi- brosis or calcification masses and neurolysis of common peroneal nerve can get definite curative effects.