Taiyuan University of Technology
目的 通过进行动物脊柱的轴向压缩实验，探究脊柱损伤的病理机制，对脊柱损伤的治疗，预防和研究具有一定的参考价值。方法 通过脊柱节段压缩对兔脊柱节段进行生物力学研究，同时利用数字图像相关技术（DIC）记录压缩过程并进行应变分析。结果 沿脊柱从上向下，节段的极限载荷和承载能力均不断增加；相对应的单椎体的极限载荷平均值明显大于节段；椎间盘在水平和竖直方向的应变明显大于上下椎体。结论 胸椎到腰椎的生理结构顺序来说，脊柱节段的极限载荷和承载能力均不断增加；相对应的单椎体的承载能力优于节段；在脊柱承受压应力的过程中，应重点考虑椎间盘的承载能力，脊柱节段的损伤主要表现为椎间盘的异常。本文的研究有助于脊柱压缩性骨折的预防和治疗，以及相关治疗器械和辅助器械的设计。
Objective To investigate the pathological mechanism of spinal injury by axial compression experiment of animal spine, and it has certain reference value for the treatment, prevention and research of spinal injury. Methods The biomechanical study of the rabbit spine segment was performed by spinal segment compression. And recording the compression process and performing strain analysis by Digital Image related technology (DIC). Results From the top to the bottom of the spine, the ultimate load and bearing capacity of the segment increased continuously; the average limit load of the corresponding single vertebral body was significantly larger than the segment; the strain of the intervertebral disc in the horizontal and vertical directions was significantly larger than that of the upper and lower vertebral bodies. Conclusion The order of the physiological structure from thoracic spine to the lumbar spine is increasing. The ultimate load and bearing capacity of the spine segment are increasing. The corresponding bearing capacity of the single vertebral body is better than that of the segment. In the process of compressing the compressive stress of the spine, the bearing capacity of the intervertebral disc should be taken into account and the injury of the spinal segment are mainly manifested as abnormal disc of the intervertebral disc.The research in this paper contributes to the prevention and treatment of spinal compression fractures, as well as the design of related therapeutic instruments and assistive devices.