摘要
目的研究腰椎间盘突出并椎体后缘离断症的横断位、矢状位CT表现,探讨其发病机制和命名。方法对18例患者共19个部位进行CT扫描并进行矢状位重建。结果突出的椎间盘和离断的骨片突入椎管,横断位显示骨片后移,相对应的缺损区有髓核组织充填;矢状位上有15个显示离断骨片呈条状后翘,与椎体后缘形成一“V”形缺损区,4个呈三角形或不规则形。15个与椎体离断;4个仍然相连。椎体后缘有骨性缺损,缺损边缘硬化。结论其主要的发病机制是椎间盘突出对椎体后缘的挤压,骨片离断是椎间盘突出的继发改变,建议用“腰椎间盘突出并椎体后缘离断症”这一称谓。
Objective To study the mechanism and the nomenclature of the lumbar disk herniation associated with posterior bony edge separation of the vertebral body, based on its CT findings in transverse and sagittal planes. Methods 18 patients with lumbar disk herniation were evaluated with the CT scan and sagittal reconstruction. Results There were 19 lumbar herniated disks associated with separated posterior bony edge of the vertebral body which protruded into the spinal canal. There was bony defect filled with disk material. In the sagittal plane, the bony separation and the posterior edge of the vertebral body formed the “V” type defect at 15 levels, and 4 were irregular or triangular. 15 cases of the disc herniation had bony separations and 4 had bone connection with the vertebral body. There were bony defect and sclerosis on the vertebral body edge. Conclusion The main mechanism was the separation compression of the herniated disk on the posterior vertebral body. The bony separation was the secondary change. So the authors suggest that such anatomical pathologic changes be named as intervertebral disk herniation associated with posterior bony separation of the lumbar vertebrae.
出处
《中华骨科杂志》
CAS
CSCD
北大核心
2002年第1期14-16,共3页
Chinese Journal of Orthopaedics
关键词
发病机制
并发症
CT检查
诊断
腰椎间盘突出
椎体后缘离断症
Lumbar vertebrae
Intervertebral disk displacement
Tomography, X-ray computed
Posterior edge separation
