Bone Mineral Density and Fracture Risk Assessment to Optimize Prosthesis Selection in Total Hip Replacement

通过对骨密度及骨折风险进行评估对全髋关节置换假体进行最优选择

The variability in patient outcome and propensity for surgical complications in total hip replacement (THR) necessitates the development of a comprehensive, quantitative methodology for prescribing the optimal type of prosthetic stem: cemented or cementless.

对骨水泥和非骨水泥型假体柄进行分析

The objective of the research presented herein was to describe a novel approach to this problem as a first step towards creating a patient-specific, presurgical application for determining the optimal prosthesis procedure.

第一步 通过术前设计软件 选择最佳假体

Finite element analysis (FEA) and bone mineral density (BMD) calculations were performed with ten voluntary primary THR patients to estimate the status of their operative femurs before surgery.

通过有限元和骨密度对患者进行术前评估

A compilation model of the press-fitting procedure was generated to define a fracture risk index (FRI) from incurred forces on the periprosthetic femoral head.

用相关软件模拟对假体周围股骨头的压力，评价骨折的风险。

Comparing these values to patient age, sex, and gender elicited a high degree of variability between patients grouped by implant procedure, reinforcing the notion that age and gender alone are poor indicators for prescribing prosthesis type.

将数据与患者年龄、性别、假体类型等等进行比较

Additionally, correlating FRI and BMD measurements indicated that at least two of the ten patients may have received nonideal implants. This investigation highlights the utility of our model as a foundation for presurgical software applications to assist orthopedic surgeons with selecting THR prostheses.

结果显示，是个病人最少有两个病人接收了非理想植入物。

应用术前软件进行术前评估和设计是有意义的。