Mechanical function as an influence on the structure and form of bone.
Mechanical function as an influence on the structure and form of bone.
复制标题
机械功能对骨的结构和形式的影响。
DOI：
--
复制
发表时间：
1976
影响因子：
--
通讯作者：
D. Baggott
中科院分区：
文献类型：
--
作者：
L. Lanyon;D. Baggott
在8只骨骼成熟的雌性绵羊的桡骨近半侧的头侧和尾侧安装了玫瑰花环应变计；绵羊的桡骨有轻微的头凸曲率。在行走过程中，它被变形，使得颅面受到拉伸，沿骨骼的离子轴对齐，尾部表面受到类似的压缩对齐。骨尾侧的压缩应变始终大于颅侧的拉伸应变(X1-9)。皮质的厚度并没有反映出这种差异，但在年轻的动物中，皮质的骨质重塑过程似乎进一步推进，而皮质通常受到较大变形的影响。这些发现的相关性与内固定技术和我们对骨的机械适应性的基础的理解有关。
Rosette strain gauges were attached to the cranial and caudal aspects of the proximal half of the radius in eight skeletally mature female sheep; The sheep's radius has a slight cranially convex curvature. During walking it was deformed so that the cranial surface was subjected to tension aligned along the bone's lon axis, and the caudal surface to compression similarly aligned. The compressive strain on the caudal aspect of the bone was consistently larger (X 1-9) than the tensile strain on the cranial aspect. The thickness of the cortex did not reflect this difference but in younger animals the process of osteonal remodelling seemed further advanced in the cortex which was customarily subject to the larger deformation. The relevance of these findings is discussed in relation to the technique of internal fixation and to our understanding of the basis of the mechanical adaptability of bone.