Structural strength of the macaque femur
Structural strength of the macaque femur
复制标题
猕猴股骨的结构强度
DOI：
10.1002/ajpa.1330540303
复制
发表时间：
1981
影响因子：
2.8
通讯作者：
G. Miller
中科院分区：
文献类型：
--
作者：
D. Burr;G. Piotrowski;G. Miller
骨力学的新技术，以及运动功能可以根据这些新技术描绘的结构强度模式来解释的证明，为非人灵长类长骨的结构强度分析奠定了基础。本文详细介绍了地形变异的猕猴股骨骨干的结构强度的基础上，进一步量化的形式-功能的相互作用，在pronograde灵长类动物。对42只猕猴的股骨干进行连续切片。这些截面被数字化，并将坐标点提交给SCADS计算机化应力分析程序。这一分析表明，猕猴的股骨干是更好地适应近端比远端抵抗轴向载荷。股骨近端三分之一能够更好地抵抗后外侧/前内侧方向的弯曲载荷，而不是标准平面。股骨远端的几何形状非常适合抵抗高弯曲载荷，特别是在内外侧平面。股骨远端的椭圆形结构也可抵抗高扭转载荷。当与猕猴股骨干的密度数据相比，这些数据表明在内侧平面的刚度极高。密度和结构刚度之间的反比关系远端表明结构强度，几何形状和密度之间的补偿机制的存在。猕猴和人类股骨力学的相似性表明，在陆地四足和双足运动的下肢应力模式的一致性。
New techniques in bone mechanics, and the demonstration that locomotor function can be interpreted based on patterns of structural strength delineated by these new techniques, lay the foundation for analyses of structural strength in nonhuman primate long bones. The present paper details topographic variability in structural strength of the femoral diaphysis of Macaca as a basis for further quantifying form-function interactions in pronograde primates. The femoral diaphyses of 42 macaques were serially sectioned. These sections were digitized, and coordinate points were submitted to the SCADS computerized stress analysis program. This analysis indicated that the femoral diaphysis of Macaca is better adapted proximally than distally to resist axial loads. The proximal third of the femur is better able to resist bending loads in the posterolateral/anteromedial direction than in the standard planes. The distal femur is geometrically well suited to resist high bending loads, particularly in the mediolateral plane. The elliptical construction of the distal femur is designed to resist high torsional loads as well. When compared with density data on the macaque femoral diaphysis, these data indicate extremely high rigidity in the mediolateral plane. The inverse relationship between density and structural rigidity distally indicates the presence of compensatory mechanisms between structural strength, geometry, and density. Similarities in femoral mechanics in macaques and humans suggest uniformity of stress patterns of the lower extremity in terrestrial quadrupedal and bipedal locomotion.