An analysis of the results of late reconstruction of 132 median nerves.

132 patients with injuries to the median nerve were assessed on average 10.4 years after repair. There were 106 males and 26 females, with a mean age of 28.4 years. Most of the nerve lesions were sharp (76) or blunt (47) injuries. Division was total in 87 cases, and most were at the wrist level. Secondary repair was performed in 34 cases and fascicular grafting in 98 cases. The average gap was 5.8 cm. A quantitative evaluation and grading according to the MRC classification was created to reflect sensory and motor recovery. Excellent or good results were obtained in only 49.2%. The age of the patient, the width of contusion, the pre-operative delay, the length of grafting and the level of the injury influenced the results significantly. The result of nerve repair was poor in patients aged over 54 years, when the level of the injury was more than 56 cm proximal to the finger tip, if the pre-operative delay was more than 24 months, or if the graft length was more than 70 mm.