腰椎后缘软骨结节的CT探讨
作者：孙西河 王滨 周茂义 常光辉 李丽新
单位：潍坊医学院影像医学教研室 潍坊 261042
关键词：腰椎后缘软骨结节；断层摄影术；X线计算机；腰椎间盘突出
潍坊医学院000122摘 要：目的分析腰椎后缘软骨结节的CT表现并探讨其发病机制。方法观察2512例腰椎间盘突出和其中49例腰椎后缘软骨结节，分析其临床和CT表现特点。结果腰椎后缘软骨结节好发年龄为20～40岁，以S1和L5后上缘最常见，约占腰椎间盘突出病人的2%。软骨结节的形态以类圆形最多见，多有硬化边缘。裂隙形或边缘无硬化者可能为本病早期改变。软骨结节下多形成骨性突起，造成椎管矢状径变小；软骨结节常使椎体终板变形后膨，导致椎体侧隐窝狭窄。结论腰椎后缘软骨结节与腰椎间盘突出相互促进，CT是本病较好的检查手段。
分类号：R814.42 文献标识码：A
, http://www.100md.com
CT Study of Lumbar Posterior Marginal Intraosseous Node
Sun Xihe,Wang Bin,Zhou Maoyi
(Department of Medical Imagiology,Weifang Medical College,Weifang,261042)
Abstract：Objective To study the CT manifestation and pathogeny of lumbar posterior marginal intraosseous cartilagious node (LPMN).Method 2512 cases with herniation of intervertebral discs were studied in which 49 cases of LPMN were observed by its clinics and character of CT manifestation.Result Most of LPMN were in 20～40 years and the posterior superior margins of L5 and Sl were the commonest sites.LPMN made up 2percent of the total herniation of intervertebral discs.The shapes of the intraosseous cartilaginous nodes were paracircle mostly.The shapes of rift and no hardmargin probably were the manifestations at the early stage.Bony protrusions below the intraosseous cartilaginous node were often formed and resulted in the saginal diameter of the vertebral tube being changed narrow.LPMN often made the vertebral plate be out of shape and expand backwards and led to lateral crypts of vertebra narrowed.Conclusion LPMN and herniation of intervertebral discs help each other forward.CT was one of the most effective ways to find them.
, 百拇医药
Keywords：Vertebral posterior marginal intraosseous node；Tomography,X-ray computed;Herniation of intervertebral disc
参考文献：
[1]曹来宾，詹阿来，曹庆选，等.腰椎后缘软骨结节的影像学研究[J].中华放射学杂志，1992，26(4)：240
[2]Laredo JD,Bard M,Chretien J,et al.Lumbar posterior marginal intra-osseous cartilagenous node[J].Skeletal Radiol,1986,15:201
[3]Dake MD,Jacobs RP,Margolin FR.Computed tomography of posterior lumbar appophyseal ring fractures[J].J Comput Assist Tomogr,1985,9:730
[4]Dietemann JL,Runge M,Badoz A,et al.Radiology of posterior lumbar appophyseal ring fractures:Report of 13 cases[J].Neuroradiology,1988,30:337
[5]Handel SF,Twiford TW,Reigel DH,et al.Posterior lumbar appophyseal fractures[J].Radiology,1979,130:629
收稿日期：1999-03-31, 百拇医药
单位：潍坊医学院影像医学教研室 潍坊 261042
关键词：腰椎后缘软骨结节；断层摄影术；X线计算机；腰椎间盘突出
潍坊医学院000122摘 要：目的分析腰椎后缘软骨结节的CT表现并探讨其发病机制。方法观察2512例腰椎间盘突出和其中49例腰椎后缘软骨结节，分析其临床和CT表现特点。结果腰椎后缘软骨结节好发年龄为20～40岁，以S1和L5后上缘最常见，约占腰椎间盘突出病人的2%。软骨结节的形态以类圆形最多见，多有硬化边缘。裂隙形或边缘无硬化者可能为本病早期改变。软骨结节下多形成骨性突起，造成椎管矢状径变小；软骨结节常使椎体终板变形后膨，导致椎体侧隐窝狭窄。结论腰椎后缘软骨结节与腰椎间盘突出相互促进，CT是本病较好的检查手段。
分类号：R814.42 文献标识码：A
, http://www.100md.com
CT Study of Lumbar Posterior Marginal Intraosseous Node
Sun Xihe,Wang Bin,Zhou Maoyi
(Department of Medical Imagiology,Weifang Medical College,Weifang,261042)
Abstract：Objective To study the CT manifestation and pathogeny of lumbar posterior marginal intraosseous cartilagious node (LPMN).Method 2512 cases with herniation of intervertebral discs were studied in which 49 cases of LPMN were observed by its clinics and character of CT manifestation.Result Most of LPMN were in 20～40 years and the posterior superior margins of L5 and Sl were the commonest sites.LPMN made up 2percent of the total herniation of intervertebral discs.The shapes of the intraosseous cartilaginous nodes were paracircle mostly.The shapes of rift and no hardmargin probably were the manifestations at the early stage.Bony protrusions below the intraosseous cartilaginous node were often formed and resulted in the saginal diameter of the vertebral tube being changed narrow.LPMN often made the vertebral plate be out of shape and expand backwards and led to lateral crypts of vertebra narrowed.Conclusion LPMN and herniation of intervertebral discs help each other forward.CT was one of the most effective ways to find them.
, 百拇医药
Keywords：Vertebral posterior marginal intraosseous node；Tomography,X-ray computed;Herniation of intervertebral disc
参考文献：
[1]曹来宾，詹阿来，曹庆选，等.腰椎后缘软骨结节的影像学研究[J].中华放射学杂志，1992，26(4)：240
[2]Laredo JD,Bard M,Chretien J,et al.Lumbar posterior marginal intra-osseous cartilagenous node[J].Skeletal Radiol,1986,15:201
[3]Dake MD,Jacobs RP,Margolin FR.Computed tomography of posterior lumbar appophyseal ring fractures[J].J Comput Assist Tomogr,1985,9:730
[4]Dietemann JL,Runge M,Badoz A,et al.Radiology of posterior lumbar appophyseal ring fractures:Report of 13 cases[J].Neuroradiology,1988,30:337
[5]Handel SF,Twiford TW,Reigel DH,et al.Posterior lumbar appophyseal fractures[J].Radiology,1979,130:629
收稿日期：1999-03-31, 百拇医药