Gap arthroplasty with disc repositioning for pediatric TMJ ankylosis secondary to intracranial condylar dislocation: A case report.

INTRODUCTION AND

IMPORTANCE

A rare consequence of maxillofacial trauma of an intracranial dislocation of the mandibular condyle into the middle cranial fossa. We present a case involving the management of this dislocation, complicated by temporomandibular joint (TMJ) ankylosis.

CASE PRESENTATION: An 11-year-old boy was transferred to a tertiary hospital following a road traffic accident. Examination revealed a dislocation of the right mandibular condyle into the middle cranial fossa. After closed reduction by intermaxillary fixation (IMF), the patient developed TMJ ankylosis and the initial mouth opening was 8 mm due to prolonged IMF. He subsequently referred to the National Maxillofacial Unit in Muscat, Oman for expert management and treatment.

CLINICAL DISCUSSION: A pre-operative CT scan revealed an ankylotic bone mass in the left TMJ area. The patient underwent TMJ gap arthroplasty and disc repositioning under general anesthesia. Post-operatively, the patient's mouth opening improved to 43 mm.

CONCLUSION

Multidisciplinary team for management and close monitory such cases is crucial to prevent further surgical complications.