tardy ulnar nerve palsy

tardy ulnar nerve palsy

an abnormal condition characterized by atrophy of the first dorsal interosseous muscle and difficulty in performing fine manipulations. It may be caused by injury of the ulnar nerve at the elbow and commonly affects individuals with a shallow ulnar groove or those who persistently rest their weight on their elbows. Signs and symptoms of this disorder may include numbness of the small finger, of the contiguous half of the proximal and middle phalanges of the ring finger, and of the ulnar border of the hand. Treatment concentrates on the prevention of further injury to the ulnar nerve. Therapy may include the use of a doughnut cushion for the elbow to relieve the pressure on the ulnar nerve. Severe cases of this disorder may be corrected by surgical procedures that mobilize and transplant the nerve to a site in front of the medial epicondyle.
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