Mandibular reconstruction with the free vascularized fibular flap: utility of three-dimensional computerized tomography.

Oncologic management in the mandibular area leaves important osseous defects, that require reconstructive procedures with vascularized osseous tissues. Mandibular reconstructions with free vascularized fibular flaps have well-defined indications and some advantages over various other types of vascularized osseous grafts, because the fibular graft permits the reconstruction of large mandibular defects. This study demonstrates the usefulness of three-dimensional (3D) tomography as a tool to determine the size of the defect, and with angiotomography, to define the anatomic pattern of the vascular pedicle. Five patients with varying mandibular tumors and osseous defects were evaluated with 3D tomography in the pre- and postoperative periods. Two patients were immediately reconstructed with vascularized fibular flaps. 3D preoperative tomography showed the dimensions of the tumor, the dimensions of the mandibular resection, and the graft vascular pattern. Three patients were secondarily reconstructed, two of them with partial mandibular defects, and one patient with total mandibular reconstruction. In the preoperative period, 3D tomography was used to determine the dimensions of the mandibular defect, as well as the area of the osteotomies. The technology permits an exact knowledge of the dimension of mandibular defects, allowing better planning of reconstructive procedures.