Tencer A F, Ahmed A M, Burke D L
J Biomech Eng. 1982 Aug;104(3):193-201. doi: 10.1115/1.3138348.
The in-vitro static load-displacement properties of the intact and the injured human lumbar intervertebral joint have been investigated in a loading apparatus which allows entirely unconstrained relative displacement between the joint members. The spatial relative displacement produced by a given load, alone or in combination with another load (preload), were measured using 14 specimens and emphasizing strict control of the secondary variables which are known to affect the results. An attempt has been made to interpret the results in terms of the relative load-bearing roles of the disk, the facets and the posterior ligaments as a function of the type of load. The results indicate that the disk is the major load-bearing element in lateral and anterior (with respect to fixed superior vertebra) shears, axial compression and flexion, while the facets play a major role in posterior shear and axial torque.
在一种允许关节部件之间完全无约束相对位移的加载装置中，对完整和受伤的人体腰椎椎间关节的体外静态载荷 - 位移特性进行了研究。使用14个标本测量了由给定载荷单独或与另一个载荷（预载荷）组合产生的空间相对位移，并强调严格控制已知会影响结果的次要变量。已尝试根据椎间盘、小关节和后韧带的相对承重作用来解释结果，这些作用是载荷类型的函数。结果表明，椎间盘是外侧和前侧（相对于固定的上位椎体）剪切、轴向压缩和屈曲中的主要承重元件，而小关节在后侧剪切和轴向扭矩中起主要作用。
