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  • Title: [Results of primary repair of injuries to the median and ulnar nerves at the wrist].
    Author: Kilinc A, Ben Slama S, Dubert T, Dinh A, Osman N, Valenti P.
    Journal: Chir Main; 2009 Apr; 28(2):87-92. PubMed ID: 19246233.
    Abstract:
    INTRODUCTION: Wounds on the palmar side of the wrist affecting the median or ulnar nerves are responsible for motor and sensory sequelae, severe pain and cold intolerance. MATERIALS AND METHODS: Thirty-nine patients with 40 nerve sections were retrospectively reviewed with a mean follow up of 23 months. The median nerve alone was affected 20 times, the ulnar nerve seven times and both nerves simultaneously 13 times. In 75% of the cases, there was an associated vascular injury (radial artery and/or ulnar artery). The average number of tendons cut was 4.25. RESULTS: After repair of the median nerve, 71% of patients recovered antepulsion and opposition that was normal or possible against resistance. The strength was approximately 70% of the opposite side. The sensitive recovery was good (S3 in>or=50% of cases) but it was accompanied by cold intolerance one out of two patients. After repair of the ulnar nerve, 29% of the cases had an ulnar claw hand, 71% of patients recovered sensitivity greater or equal to S3 but with cold intolerance in 42% of the cases. The combined median and ulnar sections had a poorer sensory-motor prognosis. Revision surgery was necessary in 12 of these cases. CONCLUSION: Sensory recovery after an isolated ulnar nerve lesion at the wrist is better than after an isolated median nerve lesion but there is no difference in the motor recovery. Combined median and ulnar lesions have an especially bad prognosis and may require secondary palliative surgery. The existence of nerve contusion and a high number of tendon injuries were factors associated with a poorer prognosis.
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