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首页> 外文期刊>Joint, bone, spine : >Antero-postero differences in cortical thickness and cortical porosity of T12 to L5 vertebral bodies.
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Antero-postero differences in cortical thickness and cortical porosity of T12 to L5 vertebral bodies.

机译：T12至L5椎体的皮质厚度和皮质孔隙率的前后差异。

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OBJECTIVE: This study will investigate interrelationships between the cortical shell and cancellous bone trabecular thickness, in vertebral bodies. METHODS: One hundred and sixty vertebral bodies from T12 to L5 were obtained at autopsy. The average age of the cohort was 59.3+/-22.1 years (range = 20-94 years). Cortical thickness, cortical porosity and trabecular thickness from the adjacent cancellous bone were measured. RESULTS: At the mid-vertebral body anterior cortical thickness was significantly greater than posterior cortical thickness (524 +/- 352 vs. 370 +/- 283 microm, respectively, P < 0.0001) and mid-anterior cortical porosity was significantly less than mid-posterior cortical porosity (24 +/- 14% vs. 32 +/- 16%, respectively, P < 0.0001). There were no anterior/posterior differences in trabecular thickness of the cancellous bone adjacent to the cortical walls. CONCLUSION: This study provides a novel perspective of T12 to L5 vertebral body bone, where measurement of cortical thickness and cortical porosity in a cohort of skeletally normal individuals revealed structural differences between load bearing anterior and posterior cortical walls. The data suggest that modulators of change to vertebral body bone may affect the cortical and trabecular bone differently. The relationships between cortical and cancellous bone suggest that the middle sectors of the vertebral body play a critical role in load bearing.
机译：目的：本研究将研究椎体中皮质壳与松质骨小梁厚度之间的相互关系。方法：在尸体解剖中获得T12至L5的160个椎体。该队列的平均年龄为59.3 +/- 22.1岁（范围= 20-94岁）。测量相邻松质骨的皮质厚度，皮质孔隙率和小梁厚度。结果：在椎体中部，前皮质厚度明显大于后皮质厚度（分别为524 +/- 352 vs. 370 +/- 283 microm，P <0.0001），并且中前皮质孔隙率显着低于中皮质后皮质孔隙率（分别为24 +/- 14％和32 +/- 16％，P <0.0001）。与皮质壁相邻的松质骨的小梁厚度没有前/后差异。结论：这项研究为T12至L5椎体骨提供了新的视角，其中对一组骨骼正常个体的皮质厚度和皮质孔隙率的测量显示了承重的前皮质壁和后皮质壁之间的结构差异。数据表明，椎体骨变化的调节剂可能会不同地影响皮层和小梁骨。皮质和松质骨之间的关系表明，椎体的中间部分在承重中起关键作用。

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