Temporomandibular joint ankylosis--experience with a case of twenty years' duration

The clinical and radiographic findings and operative management of a patient having temporomandibular joint ankylosis for 20 years is presented. The patient had fibrous ankylosis on one side and complete bony ankylosis on the other. There was substantial growth of the mandible on the side with fibrous ankylosis, and marked growth retardation on the side with bony ankylosis. Both a preauricular and an intraoral approach were required to release structures restricting mandibular opening. Complications included temporary upper facial nerve palsy and a persistent anterior open bite requiring further treatment.