舌骨骨折を伴った顎骨骨折の１例

Abstract

Hyoid bone fracture is very rare because the hyoid bone is anatomically movable and protected by the mandible, cervical vertebrae, and clavicle. We report a case of jaw fractures with a hyoid bone fracture. The patient was a 56-year-old man who was injured by a traffic accident. He was transported to the nearest emergencyhospital. Under the diagnosis of multiple fractures of facial bones and general contusion, he was hospitalized andreceived anti-inflammatory treatment. He was referred to our department for treatment of his intraoral wound.Intraoral examination revealed luxation of the mandibular anterior teeth and detition of the surrounding gingival. CT imaging showed fractures in the left great horn of the hyoid bone, maxilla, orbital floor, nasal bone, and alveolarbone of the mandible. As the patient had only slight swallowing pain, anti-inflammatory treatment was administeredduring hospitalization, without surgery. Half a year since the accident, CT imaging showed slight restorationof the hyoid bone, and the patient has had no symptoms.