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首页> 外文期刊>Orthopedics >Photoelastic and thermoelastic measurement of stress on the proximal femur before and after implantation of a hip prosthesis with retention of the femoral neck.
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Photoelastic and thermoelastic measurement of stress on the proximal femur before and after implantation of a hip prosthesis with retention of the femoral neck.

机译:髋关节假体植入前后,保留股骨颈的股骨近端应力的光弹性和热弹性测量。

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摘要

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.
机译:这项研究表明,使用七个新鲜的冷冻股骨可以改善内侧支撑,并将负荷转移到股骨的保留颈部。结果证实了热弹性应力分析方法的可靠性,该方法可与光弹性表面涂​​层方法相媲美,但灵敏度更高。茎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的不均匀增加。因此,创造了改善的生物力学条件,用于永久稳定地植入假体并保留股骨颈。

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