Reconstruction of the mandible with a free fibular graft is one of the most common treatment choices following tumor resection. But as the graft is often vertically deficient, pathological fracture may occur because of occlusal forces after prosthetic rehabilitation. Distraction osteogenesis can be a good choice for the repair of the fibular flap. In this report, a case of fractured fibula flap after 7 years, rehabilitated with a posteriorly directed vertical distractor, will be presented.