Orthognathic and temporomandibular joint simulutaneous reconstructive surgery using a costochondral graft: Report of a case

This report describes a patient who underwent two-jaw osteotomy with simultaneous reconstructive surgery of the temporomandibular joint (TMJ) using an autologous costochondral graft. The patient had skeletal malocclusion and facial asymmetry caused by dislocation and resorption of the condyle associated with a previous fracture. We planned the operation to prevent a postoperative continuous decrease in ramus height. Postoperatively, the provision of posterior support for the decreased ramus height was useful in maintaining stable occlusion and facial asymmetry. There was no postoperative ankylosis of the TMJ, and the grafted cartilage-bone complex underwent remodeling physiologically.We conclude that costicartilage is a suitable material for TMJ reconstruction and maintaining ramus height.