Zhang Mei-chao, Shi Feng-lei, Zhao Wei-dong, Ouyang Jun, Zhong Shi-zhen
Key Laboratory for Medical Biomechanics of PLA, Southern Medical University, Guangzhou 510515, China.
Di Yi Jun Yi Da Xue Xue Bao. 2005 Oct;25(10):1244-6.
To analyze the stress distribution and its changes of the femoral neck at different abduction angles of the hip joint to provide biomechanical evidence for the treatment of hip joint disease.
A three-dimensional finite element model of the femoral head region was reconstructed on the basis of data available in the dataset of No.1 Virtual Male Chinese. Different abduction angles of the hip joint were simulated under the load of body weight, and the stress distribution on the femoral neck was calculated and compared.
With different abduction angles of the hip joint, the stresses on the medial and lateral sides of the femoral neck were obviously greater than those on the anterior and posterior regions. As the abduction angle of the hip joint increased, the stress on the posterior aspect of the femoral neck decreased while that in other regions increased (except for the anterior aspect of the femoral neck which remained unchanged).
The lateral aspect of the femoral neck withstands the most intense stress of the body weight, which increases with the abduction angle of the hip joint.
分析髋关节不同外展角度下股骨颈的应力分布及其变化，为髋关节疾病的治疗提供生物力学依据。
基于中国男性数字人1号数据集的可用数据重建股骨头区域的三维有限元模型。在体重载荷下模拟髋关节不同的外展角度，并计算和比较股骨颈上的应力分布。
随着髋关节外展角度的不同，股骨颈内侧和外侧的应力明显大于前后区域的应力。随着髋关节外展角度的增加，股骨颈后侧的应力降低，而其他区域的应力增加（股骨颈前侧除外，其应力保持不变）。
股骨颈外侧承受着体重的最大应力，且该应力随髋关节外展角度的增加而增大。
