Hvid I, Møller J T
Arch Orthop Trauma Surg (1978). 1985;104(1):57-61. doi: 10.1007/BF00449959.
Nondestructive low-strain-rate compression tests were carried out on 12 human cadaver tibiae fitted with a metal modular resurfacing component on the medial or lateral condyle. The tests were done at 20 regularly spaced points on each plateau. The reproducibility of measurement was +/- 16% (95% tolerance limits). A statistically significant correlation was demonstrated between stiffness and ultimate force values obtained from the same points (r = 0.75, P less than 0.005). On the medial plateau the compressive stiffness of the system was maximal when load was applied to the center of the prosthesis, but declined sharply toward the medial and posterior margins. On the lateral plateau maximal stiffness values were obtained more posteriorly, and the stiffness gradients toward the periphery were less marked. Details of surgical technique and specific loading situations that may cause undesirable combinations of load and point of prosthetic component contact are discussed.
对12具在其内侧或外侧髁安装了金属模块化表面置换部件的人体尸体胫骨进行了无损低应变率压缩试验。在每个平台上的20个等间距点进行测试。测量的重现性为±16%（95%公差限度）。从同一点获得的刚度值和极限力值之间显示出具有统计学意义的相关性（r = 0.75，P < 0.005）。在内侧平台，当向假体中心施加负荷时系统的压缩刚度最大，但向内侧和后缘急剧下降。在外侧平台，最大刚度值出现在更靠后的位置，并且朝向周边的刚度梯度不太明显。文中讨论了可能导致负荷与假体部件接触点出现不良组合的手术技术细节和特定负荷情况。
