Zhang Qing Hang, Teo Ee Chon, Ng Hong Wan
School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore.
J Biomech Eng. 2005 Oct;127(5):729-35. doi: 10.1115/1.1992527.
In this study, the digitized geometrical data of the embalmed skull and vertebrae (C0-C7) of a 68-year old male cadaver were processed to develop a comprehensive, geometrically accurate, nonlinear C0-C7 FE model. The biomechanical response of human neck under physiological static loadings, near vertex drop impact and rear-end impact (whiplash) conditions were investigated and compared with published experimental results. Under static loading conditions, the predicted moment-rotation relationships of each motion segment under moments in midsagittal plane and horizontal plane agreed well with experimental data. In addition, the respective predicted head impact force history and the S-shaped kinematics responses of head-neck complex under near-vertex drop impact and rear-end conditions were close to those observed in reported experiments. Although the predicted responses of the head-neck complex under any specific condition cannot perfectly match the experimental observations, the model reasonably reflected the rotation distributions among the motion segments under static moments and basic responses of head and neck under dynamic loadings. The current model may offer potentials to effectively reflect the behavior of human cervical spine suitable for further biomechanics and traumatic studies.
在本研究中，对一名68岁男性尸体的防腐处理后的颅骨和颈椎（C0 - C7）的数字化几何数据进行了处理，以建立一个全面的、几何精确的、非线性的C0 - C7有限元模型。研究了人体颈部在生理静态载荷、近顶点跌落冲击和追尾冲击（鞭打）条件下的生物力学响应，并与已发表的实验结果进行了比较。在静态载荷条件下，预测的每个运动节段在矢状面和水平面力矩作用下的力矩 - 旋转关系与实验数据吻合良好。此外，预测的头部冲击力历史以及头部 - 颈部复合体在近顶点跌落冲击和追尾条件下的S形运动学响应与报道实验中观察到的结果相近。尽管在任何特定条件下预测的头部 - 颈部复合体响应都不能完美匹配实验观察结果，但该模型合理地反映了静态力矩下运动节段之间的旋转分布以及动态载荷下头部和颈部的基本响应。当前模型可能为有效反映人体颈椎的行为提供潜力，适用于进一步的生物力学和创伤研究。
