Nickel J C, McLachlan K R
Department of Preventive Dental Science, Faculty of Dentistry, University of Manitoba, Winnipeg, Canada.
Arch Oral Biol. 1994 May;39(5):439-48. doi: 10.1016/0003-9969(94)90175-9.
An in vitro experimental technique was developed to measure the stress-distribution properties of this disc. Discs were tested for conditions of increasing load and decreasing congruity between loading surfaces. Peak stresses and pressure gradients increased linearly as load on the disc increased. For a given load, as congruity of the surfaces decreased, pressure gradients increased. The results demonstrate that the disc has only a limited capacity for stress distribution. Disc thickness was a critical factor determining the peak stresses measured under the disc.
开发了一种体外实验技术来测量该椎间盘的应力分布特性。对椎间盘进行测试，以模拟负荷增加和负荷面之间贴合度降低的情况。随着椎间盘上负荷的增加，峰值应力和压力梯度呈线性增加。对于给定的负荷，随着表面贴合度的降低，压力梯度增加。结果表明，椎间盘的应力分布能力有限。椎间盘厚度是决定椎间盘下方测量到的峰值应力的关键因素。
