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Background: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. Conclusion: 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.

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Background: Peripheral nerve injures are common in clinical practice that includes from compression injury to complete disruption of nerve trunk. After injury nerves can grow and repair spontaneously, early end to end anastomosis is first choice for repair but only 50% of nerve fiber would be physiologically accurate and effective, thus several techniques for repair of nerve injury are introduced including combination of nerve transplant with silicon tubes, use of biologic and synthetic tubes for nerve conduit.

Materials and Methods: In this Exprimental study, 20 rats with the same weight were selected and kept in the same condition .The left sciatic nerve of them was cut and were divided in two groups.In the first group the facial flap method for repair of nerve injury was used .In the second group vein conduit method was used as standard method. Histological nerve repair was assessed after 45 days and the intact right sciatic nerve was used as control.

Results: Repair of nerve injury in proximal, mid and distal portion of nerve in facial flap method was more effective than vein conduit (P<0.05). Repair of nerve injury in proximal, mid and distal portion had no difference compared with control group (p>0.05).

Conclusion: Repair of nerve injury with facial flap method is more effective than standard method and can be used as a new method for nerve repair.