Uchida Y, Sugioka Y
Department of Orthopedics, Faculty of Medicine, Kyushu University, Fukuoka, Japan.
Acta Orthop Scand. 1990 Apr;61(2):118-9. doi: 10.3109/17453679009006501.
Six patients with cubitus varus deformity after a supracondylar fracture of the humerus had ulnar nerve palsy 7 (3-14) years following the fracture. All the patients showed anterior dislocation of the ulnar nerve during elbow flexion. In cubitus varus deformity, medial shifting of the triceps muscle occurs, which pushes the ulnar nerve anteriorly and frequently causes ulnar-nerve dislocation. Five of the 6 patients underwent surgery with subsequent improvement.
6例肱骨髁上骨折后出现肘内翻畸形的患者在骨折7（3 - 14）年后发生尺神经麻痹。所有患者在肘关节屈曲时均表现出尺神经向前脱位。在肘内翻畸形中，肱三头肌向内侧移位，将尺神经向前推，常导致尺神经脱位。6例患者中有5例接受了手术，术后病情有所改善。
