Reidenbach M M, Schmidt H M
Department of Anatomy, Rheinische Friedrich-Wilhelms-Universität, Bonn, FRG.
Acta Anat (Basel). 1994;149(3):195-202. doi: 10.1159/000147576.
The development of cartilage canals in the human elbow joint during fetal life was studied. Plastinated 600-1,000-microns-thick sections through the right and left arms of 12 fetuses with a crown-rump length of 90-360 mm and of a newborn infant were investigated. At a crown-rump length of 90 mm, cartilage canals have started to develop well within the distal and inferior aspect of the capitulum of the humerus, and are about to enter the dorsal side of the olecranon process. The radial head shows that vascularization does not begin before the 160-mm stage. The channels reveal a centripetal orientation and do not form any anastomoses. Branching occurs mainly in a dichotomous manner. The channels never originate from those areas of the perichondrium which reveal regular and parallel or very dense but irregular anchorage of collagenous fibres into the adjacent cartilaginous tissue.
研究了胎儿期人类肘关节软骨管的发育情况。对12例头臀长为90 - 360毫米的胎儿以及1例新生儿的左右手臂进行了塑化处理，制作了厚度为600 - 1000微米的切片并进行研究。当头臀长为90毫米时，软骨管已在肱骨小头的远端和下方良好发育，并即将进入鹰嘴突的背侧。桡骨头显示在160毫米阶段之前血管化尚未开始。这些通道呈向心方向，且不形成任何吻合。分支主要以二叉方式发生。这些通道从不起源于软骨膜中那些显示胶原纤维规则且平行或非常密集但不规则地附着于相邻软骨组织的区域。
