Refior Jans Jürgen, Schidlo Christoph, Plitz Wolfgang, Heining Sandro
Department of Orthopedics and Orthopedic Surgery, Ludwig-Maximilians-University, Munich, Germany.
Orthopedics. 2002 May;25(5):505-11. doi: 10.3928/0147-7447-20020501-17.
This study demonstrated the improved medial support and the transfer of load onto the retained neck of the femur using seven fresh frozen femurs. Results confirm the reliability of the thermoelastic stress analysis method, which is comparable to the photoelastic surface coating method, but with greater sensitivity. The loading pattern after stem implantation shows a homogeneous transfer of force onto the preserved femoral neck. After femoral neck removal, an inhomogeneous increase of the intertrochanteric compression loading was observed. Therefore, improved biomechanical conditions are created for a permanently stable implantation of stem prostheses with retention of the femoral neck.
本研究使用七具新鲜冷冻股骨，展示了改进后的内侧支撑以及负荷向保留的股骨颈的转移。结果证实了热弹性应力分析方法的可靠性，该方法与光弹性表面涂层方法相当，但灵敏度更高。柄植入后的负荷模式显示力均匀地转移到保留的股骨颈上。股骨颈切除后，观察到转子间压缩负荷不均匀增加。因此，为保留股骨颈的柄假体永久稳定植入创造了更好的生物力学条件。
