[CT assisted morphological study of lumbar endplate].
[CT assisted morphological study of lumbar endplate].
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DOI：
10.3969/j.issn.1003-0034.2018.12.011
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发表时间：
2018-12-25
影响因子：
--
通讯作者：
He, Xi-Jing
中科院分区：
文献类型：
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作者：
Liu, Jian-Tao;Han, Hua;He, Xi-Jing
目的：应用CT技术对健康成人腰椎终板结构进行研究和测量，为腰椎假体的优化设计和临床应用提供有益的指导。方法：选择西安交通大学附属第二医院影像科签署知情同意书的健康成人60例，男、女各半，行全腰椎CT扫描。将扫描数据导入计算机辅助软件MIMICS 16.0进行三维重建和测量。采集指标包括正中矢状径、最大冠状径、凹陷深度、正中矢状面凹陷角、冠状面凹陷角等。结果：上、下终板矢状径的中位数和最大冠径在不同性别间差异有统计学意义(P<0.05)，从L₁到L₅变化不大，分别在1.5~2.0 mm和2.2~3.9 mm之间波动。同一序列中，男性下终板凹陷深度大于上终板凹陷深度，差异有统计学意义(P<0.05)。上下终板的矢状面凹角和冠状面凹角随椎体顺序的增加变化不大，多数椎体序列的矢状面和冠状面凹角无性别差异(P>；0.05)。统计显示，腰椎尾侧终板附近最大凹陷位于终板平面背侧。结论：腰椎终板的解剖结构非常复杂。术前掌握终板的解剖参数，充分利用CT，对腰椎假体的研制和临床应用具有重要意义。
OBJECTIVE: To study and measure the anatomic structure of lumbar vertebral endplate structure in healthy adults by computed tomography(CT) technique in order to provide a useful guidance for the optimal design and clinical application of lumbar prostheses.METHODS: Sixty healthy adults (male and female equals) were recruited for full-waist CT scan after signing the informed consent form in the imaging department of the Second Affiliated Hospital of Xi'an Jiaotong University. The scanning data was imported into the computer aided software Mimics 16.0 for 3D reconstruction and measurement. The acquisition indexes included median sagittal diameter, maximum coronal diameter, concavity depth, median sagittal depression angle, coronal depression angle and so on. Finally, the collected data were statistically analyzed by the statistical software.RESULTS: The median sagittal diameter and the maximum coronal diameter of the upper and lower endplates were not only different between the different sexes(P0.05), but had a little change from L₁ to L₅, fluctuating from 1.5 to 2.0 mm and from 2.2 to 3.9 mm, respectively. In the same sequence, the concavity depth of lower endplate in males was greater than that of upper endplate, and the difference was statistically significant(P0.05). Sagittal concavity angle and coronal concavity angle of upper and lower endplates changed slightly with the increase of vertebral order, and there was no gender difference in sagittal and coronal concavity angle of most vertebral sequences (P>0.05). Statistics showed that the largest concavity near the caudal lumbar endplate was located on the dorsal side of the endplate plane.CONCLUSIONS: The anatomical structure of the lumbar endplate is very complicated. It is important to master the anatomical parameters of the endplate and make full use of CT before operation for the development and clinical application of the lumbar prosthesis.