Mechanics of Interference Fit in Total Hip Replacement

9412503 Ghattas卡内基梅隆大学和Shadyside医院之间的联合研究项目旨在提高我们对与非骨水泥关节置换手术相关的基本生物力学问题的理解，解决相关的计算问题，从而更好地支持和进一步改进术前手术模拟系统。 拟议研究的具体任务是：（1）表征股骨近端和髋臼中的组装应变，这与非骨水泥压配部件的植入有关;（2）优化植入物和骨的形状参数;（3）开发一种有效的程序，根据CT扫描数据创建可靠的髋关节三维有限元模型。 将开发分析模型，以描述骨/植入物结构的力学性能，以及随后由于正常关节载荷产生的力学环境。 将全尺寸三维分析模型的力学性能与简化分析模型的结果和已发表的实验结果进行比较。 ***

9412503 Ghattas The joint research project between Carnegie Mellon University and Shadyside Hospital proposes to improve our understanding of basic biomechanical issues related to cementless joint replacement surgery, resolve related computational problems, and consequently lead to better support and further improvement of preoperative surgical simulation systems. Specific tasks of the proposed research are: (1) to characterize the assembly strains in the proximal femur and the acetabulum, which occur with the implantation of a cementless press-fit component, (2) to optimize the shape parameters for implant and bone, and (3) to develop an efficient procedure to create a reliable 3D finite element model of the hip joint based on CT scan data. Analytical models will be developed to describe the mechanical performance of the bone/implant construct, and subsequently the mechanical environment due to normal joint loads. The mechanical performance of the full-scale three- dimensional analytical models will be compared to the results from simplified analytical models and published experimental results. ***