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Orthopaedic Proceedings
Vol. 86-B, Issue SUPP_II | Pages 187 - 187
1 Feb 2004
Douvali E Zambiakis E Koutsoudis G Sekouris N Gelias A Kinnas P
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Between 1988 and 1998, a total of 12 patients (6 men and six women, of average age 36 years) underwent surgery for schwannoma of the peripheral nerves of the upper extremity. The incidence according to the involved nerve was analyzed and the follow-up results and complications after surgical treatment were reviewed. The median nerve was most frequently involved (6 cases), followed by the ulnar nerve (4 cases) and the radial nerve (2 cases). The average duration of symptoms was 2 years (3 months-8 years). Pain or painful paresthesias were usually the main complains. None of the patients suffered from Recklinhausen’s disease. Magnetic resonance imaging is the preferred exploration technique, particularly useful in case of deep tumor. EMG studies were carried out in all patients. Preservation of nerve continuity is the underlying goal of the therapeutic strategy. Marginal excision was performed in all cases. The tumors were extricable displacing the nerve fiber bundles without penetrating into the bundle itself and it was possible thus to be resected without interrupting the nerve continuity. Postoperatively, 7 patients were pain free, while 5 improved. Neurological deficits were favourably influenced by the operation. Out of 4 patients with motor deficits 3 had complete and 1 had partial recovery. Three out of 6 patients with sensory deficits had complete recovery, 2 remained unchanged, while 1 worsened. One patient developed new motor and another one new sensory deficits. New deficits developed predominantly in patients with large tumorsor longstanding symptoms. There was no reccurence or malignant transformation until the average of 52 months of follow-up.