Sensibility and motor recovery after primary repair of ulnar and median nerve injuries at the wrist were evaluated in 21 patients (22 injuries). The outcome was graded according to the MRC system and correlated with the clinical results. Follow-up after an average of two years showed good clinical results in 10 cases, fair results in 9 and bad results in 3 cases. Primary neurorrhaphy can be considered as the treatment of choice for serious ulnar and median nerve injuries of the wrist in accordance with previous studies.