脊椎固定術後慢性期の胸部大動脈損傷の1例

Thoracic Aortic Injury after Spinal Fusion；Report of a Case

はじめに　脊椎固定術後慢性期に椎弓根スクリューによる胸部大動脈損傷が疑われ，外科的治療が必要となった症例を経験したので報告する．

A 32-year-old female visited our hospital with back pain. She had undergone spinal fusion for scoliosis at another hospital. She visited our hospital because she was informed that the metal rod had broken. Computed tomography （CT） revealed a suspected penetration of one of the screws into the descending aorta, and aortography showed the aortic wall dented by the screw. The aorta was exposed via thoracotomy, and the top of the screw was found penetrating into the adventitia of the aorta. After carefully detaching the region from the screw, the defect of the adventitia was repaired by continuous suture. The screw was cut to avoid further injury. Several days later, re-operation was successfully performed for the scoliosis.