Ultrasound-Guided Temporomandibular Joint Injection for Chronic Posthemimandibulectomy Jaw Pain.

Temporomandibular joint (TMJ) pain can be difficult to diagnose and treat. We describe a patient with left jaw pain after right hemimandibulectomy. The patient was initially managed conservatively, which failed to reduce pain. He was then administered inferior alveolar nerve block and TMJ injection with steroid and local anesthetic. These injections provided temporary pain relief that lasted approximately 1 month and the pain recurred. Computed tomography scan showed lateral displacement of left mandibular condyle. He was then given ultrasound-guided TMJ injection of steroid and local anesthetic. This injection provided lasting pain relief.