Putz R, Müller-Gerbl M
Anatomische Anstalt, Ludwig-Maximilians-Universität München.
Unfallchirurg. 1992 Apr;95(4):164-7.
The most recent methods of investigation (CT osteoabsorptiometry) were applied in an attempt to reconstruct from their morphological structure the way in which connections between the bones of the pelvic girdle undergo stress. Thus, both sacroiliac articulation and symphysis pubis show characteristic distribution of the subchondral bone density and layout of the tensile collagen fibrous material as expression of a strongly varying qualitative pattern of stress during walking. In the region of sacroiliac articulation are the highest subchondral densities, both at the cranial and caudal edges, whereas the central part of the two auricular surfaces is less heavily mineralized. This distribution matches the thickness of the hyaline cartilage of the joint. There are striking sexual differences in the distribution of the subchondral bone density at the bordering surfaces of the symphysis pubis. During walking, all components of sacroiliac articulation and the symphysis pubis are apparently subjected to sudden changes in stress. Independent of this, the os sacrum is constantly exposed to torque on account of the weight of the upper body, and this is balanced out by the sacrospinal and sacrotuberal ligaments.
应用最新的研究方法（CT骨吸收测量法），试图从骨盆带骨骼之间连接承受应力的形态结构来进行重建。因此，骶髂关节和耻骨联合均显示出软骨下骨密度的特征性分布以及拉伸胶原纤维材料的布局，这是行走过程中应力性质强烈变化模式的表现。在骶髂关节区域，无论是在头侧还是尾侧边缘，软骨下密度都是最高的，而两个耳状面的中央部分矿化程度较低。这种分布与关节透明软骨的厚度相匹配。耻骨联合相邻表面的软骨下骨密度分布存在明显的性别差异。在行走过程中，骶髂关节和耻骨联合的所有组成部分显然都承受着应力的突然变化。除此之外，由于上身的重量，骶骨不断受到扭矩作用，而骶棘韧带和骶结节韧带可平衡这种扭矩。
