Iatrogenic nerve lesions of the upper extremity.

Thirty-three patients are presented who suffer from iatrogenic nerve injury of the upper extremity. Depending on the nature, duration, and degree of nerve injury, we performed neurolysis (16), direct nerve coaptation (4), and nerve grafting (13). Fourteen (70%) of 20 patients presenting with motor nerve injury achieved motor function against resistance. In 26 of 30 patients (87%) with sensory nerve involvement, at least some superficial sensory function was restored. Surgeons should be familiar with clinical and electroneurophysiological tests for early diagnosis of iatrogenic nerve injuries to allow early intervention for maximal nerve recovery.