The reconstruction of large mandibular defect with combined distraction osteogenesis

Abstract

We describe one case of the rehabilitation for large mandibular defect by the combined application of internal curvilinear and linear distraction osteogenesis. In the first operation, the transport discs were produced on both sides of the defect. The internal curvilinear and linear distraction were then performed Three months later, the defect was reduced by half, then in the second operation, the internal linear distraction osteogenesis bilateral to the residual defect was started. Another three months later, the newly-formed bone was evident in the distraction gaps, then in the third operation, the distracted transport bony discs were connected by a small local bone graft. By the steps, the 70 mm defect was reconstructed. This might be a practical way for the synchronous reconstruction of bony and soft tissue for large mandibular defects that do not require bone grafts from other anatomic areas.