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  • Title: Pediatric Mandibular Reconstruction Using the Vascularized Fibula Free Flap: Functional Outcomes in 34 Consecutive Patients.
    Author: Zavala A, Ore JF, Broggi A, De Pawlikowski W.
    Journal: Ann Plast Surg; 2021 Dec 01; 87(6):662-668. PubMed ID: 34334671.
    Abstract:
    BACKGROUND: The vascularized fibula free flap is a workhorse flap in pediatric mandibular reconstruction. This study aimed to address functional outcomes, complications, and morbidity associated with the fibula resection in a consecutive series of mandibular reconstruction using this technique in skeletally immature patients. METHODS: Functional outcomes in terms of maximal mouth opening capacity, patient-reported eating ability, occlusion, and gait were retrospectively reviewed in 34 consecutive pediatric patients (18 males, 16 females) who underwent mandibular reconstruction using the vascularized free fibula flap. Data regarding donor and recipient site complications were also retrieved. RESULTS: The mean follow-up period was 50.6 months (range, 12-108 months). The average age was 10.3 years (range, 2-15 years). Underlying pathologies included ossifying fibroma, ameloblastoma, mandibular arteriovenous malformation, fibrous dysplasia, Goldenhar syndrome, dentigerous cyst, mandibular lymphoma, odontogenic fibroma, adenomatoid odontogenic tumor, aneurysmal bone cyst, neurogenic sarcoma, and central giant cell granuloma. Defect length ranged from 8 to 17 cm. Mean return to normal ambulation was achieved 12 days postoperatively. All patients reported ability to eat solids and liquids, with 29 of 34 achieving normal mouth opening. Normal or minimally disturbed occlusion was maintained postoperatively in most patients. Temporomandibular joint ankylosis and condylar displacement were each developed in one patient. Two patients reported gait disturbances that receded after physical therapy. No other major donor site complications, including flexion contracture of the great toe, were identified. CONCLUSIONS: The vascularized fibula free flap is reaffirmed to be the criterion standard for mandible reconstruction in pediatric patients, providing satisfactory functional results and adequate adaptation to the growing facial skeleton with minimal sequelae. Complications regarding hallux function may be prevented by assessing the vascularity of the flexor hallucis longus intraoperatively and ensuring tension-free closure of the donor site.
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