Leg Morbidity and Function Following Fibular Free Flap Harvest

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Abstract
Over a period of 3 years, 50 consecutive free fibular flaps for mandibular reconstruction were performed on 47 patients. In 38 patients (81%) a skin paddle was included with the flap to provide either mucosal lining or skin cover; in 9 patients (19%) bone alone was used. Thirty-one patients (66%) required a skin graft to close the donor defect in the leg. Donor leg morbidity and function were determined by patient questionnaire and by physical examination. Forty-one donor sites in 40 patients were available for long-term follow-up. The follow-up ranged from 4 to 39 months with an average of 17 months. Immediate postoperative infection occurred in the donor site of 1 patient (2%) and required additional surgery. There was no other immediate donor site complications when closure required skin grafting. Eleven patients (27%) had late donor site morbidity, consisting of motor weakness of the great toe in 5 patients, ankle instability and/or stiffness in 3 patients, donor site pain in 1 patient, and edema in 2 patients. All complications were graded as mild in severity by the patient and by the examiner. In this series, although most donor site defects required skin grafting, short- and long-term morbidity was minimal. After a short rehabilitation period, all patients were fully able to engage in all daily and recreational activities.

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