Abstract
Three cases of the posterior interosseous nerve palsy treated by neurolysis are presented. The palsy was caused by direct trauma in two cases, and by a ganglion cyst in the other. They were all treated by neurolysis following unsuccessful conservative treatments. The cases with trumatic etiology showed clincal signs of recovery in the early postoperative period. In the case with a ganglion, however, recovery began as late as three months after the surgery probably because of a delay in the correct diagnosis and surgical decompression. It was suggested that prompt diagnosis utilizing imaging techniques such as CT was necessory for early detection of a space occupying lesion in posterior interosseous nerve palsy.
