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目的:分析腰骶椎后缘软骨结节的CT征象,探讨其发病机制及本病与椎间盘突出症之间的相互关系。材料与方法:23例临床拟诊为腰椎间盘突出症患者,其中男性9例,女性14例,年龄17～85岁。进行腰骶椎CT的横断面扫描,使用的CT机为Picker公司的PQS型。结果:本病好发部位在腰5和骶1椎体后缘。好发年龄为青壮年时期。形态学特征是腰骶椎后缘软骨结节病例均有相同层面的椎间盘突出,突出间盘的后缘与骨突环边缘一致。结论:CT扫描在诊断本病方面有其特有的优势。腰骶椎后缘软骨结节的发病机制与Schmor’s结节有相同之处,均为髓核及间盘组织疝入软骨板造成,应为一种特殊类型的椎间盘突出症及继发病变。
OBJECTIVE: To analyze the CT signs of lumbosacral vertebral cartilage nodules and to explore its pathogenesis and the relationship between this disease and disc herniation. MATERIALS AND METHODS: Twenty-three patients were clinically diagnosed as lumbar disc herniation, including 9 males and 14 females, aged 17-85 years. Lumbar and sacral CT scan of the cross-sectional CT, the use of the CT machine Picker’s PQS type. Results: The disease occurred in the lumbar spine 5 and sacral vertebral trailing edge. Good hair age for young adults. Morphological features of lumbosacral vertebral trabecular cartilaginous nodules have the same level of disc herniation, prominence of the trailing edge of the disc and the edge of the osteocular ring. Conclusion: CT scan has its unique advantages in the diagnosis of this disease. The pathogenesis of lumbosacral trailing edge cartilage nodules is similar to that of Schmor’s nodules. Both of them are caused by nucleus pulposus and intervertebral disc herniation into the cartilage plate, which should be a special type of disc herniation and secondary lesion.