POSTOPERATIVE AMYOTROPHIC CUBITAL NEURALG IA (4 CASES)

Four cases of post-operative ulnar nerve mononeuropathy are reported I n all the cases a severe sensory and motor loss was strictly limited t o ulnar nerve territory. The electrophysiological examination: needle examination, motor and sensory nerve conduction studies and even more somatosensory potential evoked from ulnar nerve after stimulation abov e elbow allowed to eliminate a lesion at the elbow and to asses the le sion at wrist, arm, axilla or plexus. Full recovery occurred once and partial recovery twice. We considered that these ulnar lesions are neu ralgic amyotrophies of Parsonage and Turner according to the epidemiol ogical, clinical, evolutive and electrophysiological data.