摘要
目的 :探讨腰椎后缘软骨结节 (LPMN)椎管狭窄的CT诊断价值。材料和方法 :回顾性分析 2 7例腰椎后缘软骨结节的临床及CT表现。结果 :LPMN的CT表现为 :( 1)椎体后上缘或下缘局限性骨缺损 ,缺损区周围骨质硬化 ;( 2 )缺损区后突入椎管内的骨块 ;( 3 )在矢状位上见骨块“翘起”征 ,缺损区呈“V”形或类三角形 ;( 4 )椎管狭窄 ,多伴有椎间盘突出。结论 :CT能明确诊断LPMN导致的椎管狭窄 ,并为手术治疗提供可靠依据。
Purpose:To study the diagnostic value of CT in the lumbar spinal canal stenosis caused by lumbar posterior marginal intraosseous cartilaginous node(LPMN). Materials and Methods: The manifestation of CT and clinical data of 27 cases with lumbar posterior marginal intraosseous cartilaginous node were analysed. Results:The CT features included: (1) focal bony defect in the posterior superior or posterior inferior edge of the affected vertebral body with sclerotic edge; (2 ) the defect foci which appeared the bony fragment sticking out the spinal canal; (3) on the sagittal plane,the bony fragment sticked up from the vertebral body edge which formed the shape of 'V' or triangular; (4) lumbar spinal canal stenosis mostly with lumbar disk hemiation. Conclusion: CT examniation makes it possible to diagnose the lumbar spinal canal stenosis caused by lumbar posterior marginal intraosseous cartilagous node and provide valuabe information about type of operation.
出处
《中国医学影像学杂志》
CSCD
2003年第6期428-430,共3页
Chinese Journal of Medical Imaging
