Pal G P, Cosio L, Routal R V
Department of Anatomy, Medical College of Pennsylvania, Philadelphia 19129.
Anat Rec. 1988 Dec;222(4):418-25. doi: 10.1002/ar.1092220414.
The cancellous structure of vertebrae has been studied to investigate the direction of trabeculae and thus the lines of stress. The trabecular bone of the pedicle, connecting the body to the lamina, differed in different regions of the vertebral column. At C2 level, it was found that trabeculae are involved in transfer of th column. At C2 level, it was found that trabeculae are involved in transfer of the compressive forces from the superior articular surface to the inferior articular process and body. Throughout the thoracic region, trabeculae in the pedicle were inclined anteriorly towards the body, indicating that compressive forces in the thoracic spine are transferred from the neural arch to the body. In the lower lumbar region, trabeculae run from the body towards the neural arch. Trabeculae in the thoracic transverse processes extend from the costal facet to the lamina, suggesting that weight brought by the ribs to the costotransverse articulations is transmitted to laminae through transverse processes.
为了研究椎骨的松质结构以探究小梁的方向以及应力线，人们对椎骨的松质结构进行了研究。连接椎体与椎板的椎弓根的小梁骨在脊柱的不同区域有所不同。在C2水平，发现小梁参与了该节段的力传递。在C2水平，发现小梁参与了将压缩力从上关节面传递至下关节突和椎体。在整个胸椎区域，椎弓根内的小梁向前朝椎体倾斜，这表明胸椎的压缩力从神经弓传递至椎体。在腰椎下部区域，小梁从椎体延伸至神经弓。胸椎横突内的小梁从肋关节面延伸至椎板，这表明肋骨施加于肋横关节的重量通过横突传递至椎板。
