後側方到達法（Transverso-arthropediculectomy）により治療した若年者上位胸部脊椎症の1例

A Case Report of Transverso-arthropediculectomy for Thoracic Spondylosis

Ⅰ．はじめに

　胸部脊椎症は頸部あるいは腰部脊椎症と比して稀なものである．手術治療としては前方到達法と後方到達法，後側方到達法に大別される．今回われわれは胸部脊椎症に対し，後側方到達法（transverso-arthropediculectomy）を用いて病変部を除去し得た1症例を経験したので，文献的考察を加え報告する．

We report a case of a 23-year-old male with thoracic spondylosis at the T2/3 level. He complained of lumbago and gait disturbance (spastic paraparesis and sensory disturbance below the T4 level). Preoperative CT myelography showed a posterolateral spur at the left paramedian site which was compressing the spinal cord. We performed drill-ing of the spur using the posterolateral approach, and decompressed the spinal cord. After surgery, the motor weak-ness and sensory disturbance gradually improved and spasticity was reduced. Postoperative CT showed complete decompression of the spinal cord and no spur.