| 椎体终板的凹陷角与腰椎间盘退变的相关性 |
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Received:November 23, 2003
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| 期刊信息：《中国骨伤》2004年17卷，第7期，第396-399页 |
| DOI：doi:10.3969/j.issn.1003-0034.yyyy.nn.zzz |
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目的:研究下腰椎椎体终板的凹陷角以及它在腰椎间盘退变时的变化规律。
方法:129例研究对象依据椎间盘退变情况分成3组:对照组27例,共54个椎间盘(L4,5、L5S1椎间盘各27个);腰椎间盘退变102例,共158个椎间盘(L4,5椎间盘84个,L5S1椎间盘74个),按退变程度分为2组:腰椎间盘轻度退变组,共99个椎间盘(L4,5椎间盘53个,L5S1椎间盘46个);腰椎间盘重度退变组,共59个椎间盘(L4,5椎间盘31个,L5S1椎间盘28个)。所有病例摄腰椎正侧位X线片及腰椎MR检查,将X线片及MR图像输入计算机。在MRI正中矢状面T2加权像上测量终板凹陷角,并观察退变椎间盘相邻椎体骨髓的MRI信号改变;在X线片上测量椎体的相对前高、后高和矢状径。
结果:①终板凹陷角在男女两性间差异无显著性(P>0.05);②终板的凹陷角在对照组、腰椎间盘轻度和重度退变组逐渐增大,两两间差异有显著性(P<0.05);③退变椎间盘的上下位椎体的相对前高、后高在对照组、腰椎间盘轻度和重度退变组逐渐减小,而相对矢状径逐渐增大,两两间比较差异均有显著性(P<0.05);④椎间盘轻度、重度退变组的相邻椎体骨髓的MRI信号改变率分别为24%和44%,差异有显著性(P<0.05)。 |
| [关键词]:椎间盘退变 椎体终板 磁共振 |
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| Correlation between the concave angle of vertebral end-plate and lumbar disc degeneration |
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Abstract:
Objective:To investigate the concave angle of vertebral end-plate in low lumbar spine,and the changes of the angle during lumbar disc degeneration.
Methods:129 subjects were divided into three groups.There were 27 asymptomatic volunteers with 54 discs (27 for L4,5 discs and 27 for L5S1 discs) in control group.102 patients with lumbar disc degeneration were divided into two groups:light degeneration group with 99 discs (53 for L4,5 discs and 46 for L5S1 discs) and severe degeneration group with 59 discs (31 for L4,5 discs and 28 for L5S1 discs).Radiograph and MR of lumbar spine were performed on every case and the images were input into personal computer.The concave angle of vertebral end-plate from inferior surface of L4 to that of L5 were measured by means of image analysis software and the signal change of vertebral body marrow were observed on T2-weighted MRI,the relative heights and sagittal diameters of L4 and L5 were also measured by the same software on radiograph.
Results:①There was no significant difference between male and female in concave angle of vertebral end-plates (P>0.05);②The concave angle of vertebral end-plates was significant increased from the control group and light degeneration group to severe degeneration group (P<0.05);③The relative anterior and posterior heights of vertebral body significantly decrease from the control group and light degeneration group to severe degeneration group,but the relative sagittal diameters significantly increase (P<0.05);④The ratio of the signal intensity changes in vertebral body marrow showed significantly difference between light degeneration group (24%) and severe degeneration group (44%) (P<0.05).
Conclusion:In patients with lumbar disc degeneration,the concavity of end-plate is becoming flat which corresponds with the severity of degeneration;it is mainly due to the decrease of height and the increase of sagittal diameter of vertebral body caused by the remodeling of vertebral bone and is likely a protective mechanism for the change of biomechanics. |
| KEYWORDS:Intervertebral disc degeneration Vertebral end-plate MR |
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| 引用本文，请按以下格式著录参考文献： |
| 中文格式: | 陈之青,陈其昕,李方财,楼才俊.椎体终板的凹陷角与腰椎间盘退变的相关性[J].中国骨伤,2004,17(7):396~399 |
| 英文格式: | CHEN Zhi-qing,CHEN Qi-xin,LI Fang-cai,LOU Cai-jun.Correlation between the concave angle of vertebral end-plate and lumbar disc degeneration[J].zhongguo gu shang / China J Orthop Trauma ,2004,17(7):396~399 |
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