Pneumothorax after orthognathic surgery.

We report the case of an 18-year-old girl who had pneumothorax two days after bimaxillary osteotomy to correct a severe Class II malocclusion. Chest radiograph showed left-sided pneumothorax with complete collapse of the underlying lung and mediastinal shift to the left. A chest drain was inserted and she made an uneventful recovery.

Bilateral ankylosis of the jaw treated with total alloplastic replacement using the TMJ concepts system in a patient with ankylosing spondylitis.

Minimal documentation exists regarding bilateral temporomandibular joint (TMJ) involvement in ankylosing spondylitis (AS) and surgical management of this specific manifestation. Use of TMJ concepts prostheses in AS patients has not been previously described. This case demonstrates that TMJ replacement with prosthetic joints in AS is technically possible and appropriate.