[Donor site sequela of class III B vascular anomaly following reconstruction of the mandible with free osteoseptocutaneous fibula flap: a case report].

Free transfer of the fibula for mandibular reconstruction provides desirable functional and aesthetic results. However, unexpected donor- and recipient-site complications may be encountered with most free flap transfer procedures. A 62-year-old woman underwent wide resection and segmental mandibulectomy for low-grade squamous cell carcinoma of intraoral location. Reconstruction of the defect was performed at the same session with an osteoseptocutaneous free flap from the right fibula. A class III B vascular malformation was detected intraoperatively at the donor site, which resulted in restriction of foot inversion and abduction, and of toe extension during the follow-up.