Simultaneous genial distraction and interposition arthroplasty for management of sleep apnoea associated with temporomandibular joint ankylosis.

Temporomandibular joint (TMJ) ankylosis affects the growth of the mandible and results in gross facial deformities. A critical clinical feature of long-standing TMJ ankylosis is retrogenia, which when combined with an inability to open the mouth leads to severe compromise of the airway. A case is presented of obstructive sleep apnoea syndrome secondary to TMJ ankylosis that was corrected by a new technique employing simultaneous genial distraction along with interposition arthroplasty.