Calgary Board of Education, Calgary, Alberta, Canada.
Math Biosci Eng. 2011 Oct 1;8(4):1061-83. doi: 10.3934/mbe.2011.8.1061.
A model is developed of the stress-strain response of an intervertebral disc to axial compression. This is based on a balance of increased intradiscal pressure, resulting from the compression of the disc, and the restraining forces generated by the collagen fibres within the annulus fibrosus. A formula is derived for predicting the loading force on a disc once the nucleus pressure is known. Measured material values of L3 and L4 discs are used to make quantitative predictions. The results compare reasonably well with experimental results.
建立了一个用于描述椎间盘在轴向压缩下的应力-应变响应的模型。该模型基于椎间盘受压导致的内压增加与纤维环内胶原纤维产生的约束反力之间的平衡。由此推导出一个公式，用于在已知核内压力的情况下预测椎间盘上的加载力。使用 L3 和 L4 椎间盘的实测材料值进行定量预测，结果与实验结果相当吻合。
