両側陳旧性顎関節脱臼に対し関節隆起切除術と関節包周囲の癒着剥離術を行い整復した１例

temporomandibular joint dislocation

北海道歯学会

北海道歯学雑誌

Open reduction is performed frequently for chronic long-standing dislocation of the temporomandibular joint (TMJ) owing to difficulty with closed reduction. This case report presents a case of an 84-year-old woman with a medical history of Alzheimer’s disease who was referred to our hospital for treatment of TMJ dislocation attributed to tracheal intubation upon general anesthesia 2 months ago. Closed reduction with local anesthesia was unsuccessful; thus, open reduction with general anesthesia was performed 3 months later. Reduction was successful upon performing eminectomy and adhesiolysis around the articular capsule. Open bite was observed until 5 days after the surgery. No recurrence of the dislocation was observed at 1 year following her surgery. Thus, eminectomy and adhesiolysis around the articular capsule could be considered for challenging cases of chronic TMJ dislocation.