外科技术和植入材料的改进也降低了全髋置换后的死亡率。
Changes in surgical practices and implantable devices have also helped reduce mortality after THA.
目的：研究不同刚度的股骨头假体置换后的生物力学影响及材料的弹性模量与力学相容性关系。
Objective: To study biomechanical influence and relations between the elastic modulus and mechanical compatibility for prosthesis of different stiffness after replacement.
复合地基是指天然地基在地基处理过程中部分土体得到增强或被置换或在天然地基中设置加筋材料。
The concept of the composite foundation is that setting some reinforcement body in or adding some hi-strength material in natural foundation.
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