Hall L T, Esses S I, Noble P C, Kamaric E
Institute for Spinal Disorders, Baylor College of Medicine, Houston, Texas, USA.
Spine (Phila Pa 1976). 1998 Jul 15;23(14):1517-22; discussion 1522-3. doi: 10.1097/00007632-199807150-00002.
The dimensions and shapes of vertebral body endplates of inferior L4, inferior and superior L5, and superior S1 were analyzed. Computed tomographic scans parallel to each endplate were used to develop a standardized geometric model of the boundaries of each vertebral body.
To provide a detailed analytic and geometric model of the vertebral endplates from the inferior surface of L4 to the superior surface of S1.
Although measurements of the sagittal and maximum transverse diameters of the vertebral bodies have been well documented, no study offers a complete geometric description of the shape of the endplates. Also, information acquired using the techniques of previous published reports may not provide measurements as accurate as those of the current investigation.
Twenty-five men and 21 women were studied. Computed tomographic scans of the endplates were digitized. The data were interpolated, and multivariate regression equations were derived to devise a standardized model. Measurements were taken, and the data were curve fitted to give best-fit equations for the standardized models.
The endplates resembled a cardioid at the inferior L4 level and became more elliptical toward the superior S1 level. The sagittal and transverse diameters of the endplates of inferior L4, superior and inferior L5, and superior S1 are provided and compared with those reported in previous studies.
Although the female endplates are smaller than their male counterparts, the overall shapes are similar.
分析了腰4椎体下终板、腰5椎体上下终板以及骶1椎体上终板的尺寸和形状。使用与每个终板平行的计算机断层扫描来建立每个椎体边界的标准化几何模型。
提供从腰4椎体下表面到骶1椎体上表面的椎体终板的详细分析和几何模型。
尽管椎体矢状径和最大横径的测量已有充分记录，但尚无研究对终板形状进行完整的几何描述。此外，使用先前发表报告中的技术获取的信息可能无法提供与当前研究一样准确的测量结果。
对25名男性和21名女性进行了研究。对终板的计算机断层扫描进行数字化处理。对数据进行插值，并推导多元回归方程以设计标准化模型。进行测量，并对数据进行曲线拟合以给出标准化模型的最佳拟合方程。
腰4椎体下终板类似心形，向骶1椎体上终板方向逐渐变得更椭圆。给出了腰4椎体下终板、腰5椎体上下终板以及骶1椎体上终板的矢状径和横径，并与先前研究报告中的数据进行了比较。
尽管女性终板比男性终板小，但总体形状相似。
