SUNY-Downstate College of Medicine, Brooklyn, New York.
Hospital for Special Surgery, New York, New York.
JBJS Case Connect. 2024 Aug 22;14(3). doi: e24.00169. eCollection 2024 Jul 1.
A 10-year-old girl presented after closed reduction of an elbow fracture dislocation. She demonstrated intact vascularity but a dense median nerve palsy. Preoperative magnetic resonance neurography (MRN) precisely mapped the median nerve entrapped within the medial epicondylar fracture. Intraoperatively, the median nerve was freed preceding reduction and fracture fixation. Postoperatively, neurological symptoms completely resolved, and she regained full elbow function.
Median nerve injury can present without associated vascular injury. In this case, MRN was helpful in preoperatively illustrating the spatial relationship between the median nerve and the medial epicondyle.
一名 10 岁女孩在肘部骨折脱位闭合复位后就诊。她的血管完整性良好，但正中神经麻痹严重。术前磁共振神经成像（MRN）准确显示正中神经被内侧髁突骨折所困。术中，在复位和骨折固定前先松解正中神经。术后，神经症状完全缓解，肘部功能完全恢复。
正中神经损伤可在无相关血管损伤的情况下发生。在本例中，MRN 有助于术前显示正中神经与内侧髁突之间的空间关系。
