[Tunnel lesion of the median nerve in the ulnar area]

Difficulties in the diagnosis of tunnel impairment of the median nerve in the ulnar area are explained by the presence of marked pain and other mild symptoms of its damage. Examination of 30 patients showed that the main symptoms include paresthesia and spontaneous pain, as well as other types of pain provoked by palpation of the nerve at the tunnel level with pain irradiation into the zone of the median nerve innervation. The diagnosis is confirmed by positive pain- or paresthesia-inducing tests and a slower rate of impulse conduction along the median nerve at the tunnel level. The main methods of the treatment are paraneural administration of steroid drugs and surgical decompression of the median nerve in the ulnar area.