Department of Radiology, Henan Tumor Hospital, Zhengzhou, Henan Province, People's Republic of China.
Cardiovasc Intervent Radiol. 2010 Oct;33(5):1040-3. doi: 10.1007/s00270-009-9782-5. Epub 2009 Dec 24.
We describe a case of percutaneous placement of a thoracic aortic stent-graft for safe removal of a malpositioned pedicle screw in a 52-year-old man. The patient had undergone posterior thoracic spinal instrumentation for pyogenic spondylitis and spinal deformity 8 months previously. Follow-up CT images showed a malpositioned pedicle screw which was abutting the thoracic aorta at the T5 level. After percutaneous stent-graft placement, the malpositioned pedicle screw was safely and successfully removed.
我们描述了一例经皮放置胸主动脉支架移植物的病例，用于安全取出 52 岁男性患者体内错位的椎弓根螺钉。该患者 8 个月前因化脓性脊柱炎和脊柱畸形接受了后路胸椎脊柱内固定术。随访 CT 图像显示 T5 水平有一枚椎弓根螺钉位置不当，紧贴胸主动脉。经皮支架移植物放置后，成功安全地取出了错位的椎弓根螺钉。
