Nerve injury in undisplaced supracondylar fracture of humerus: A case report

Anterior interosseous branch of median nerve injury is the most common nerve injury in displaced humerus supracondylar fractures but it is rare in undisplaced ones. This study reports a case of undisplaced humerus supra condylar fracture with median motor nerve injury. Case: The patient was a 4. 5 year-old child with elbow pain and swallowing due to trauma to his right elbow. The examination of distal of humerus showed significant tenderness and limitation in range of motion. Flection and pulp to pulp test of first and second fingers were abnormal and all other sensory but motor examinations of wrist and fingers were normal. Radiographic study of humerus showed an undisplaced extension fracture in the distal of humerus. Complete union of fracture site was seen after treatment by splint for 3 weeks and nerve injury was fully resolved after physiotherapy. Although nerve injury in undisplaced fracture of humerus is rare، despite pain and emotional condition of child and his/her parents، accurate sensory and motor nerve examination is very important.