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首页> 外文会议>International Mechanical Engineering Congress and Exposition 2007 >POST HEALING STRUCTURAL RESPONSE OF AN INTERNAL FIXATION SYSTEM FOR A MID-SHAFT RADIUS FRACTURE
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POST HEALING STRUCTURAL RESPONSE OF AN INTERNAL FIXATION SYSTEM FOR A MID-SHAFT RADIUS FRACTURE

机译：中间轴半径断裂的内部固定系统的愈合后结构响应

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Inexpensive models of the radius with and without an internal fixation system for a mid-shaft fracture are developed and analyzed using the Finite Element Method (FEM). FE models are based on geometry obtained from simple yet effective manufacturing methods. Median trabecular and cortical bone mechanical properties for a healthy adult male are used in the FEM model. These models are used to quantify the changes in bone stresses that occur when internal fixation devices are retained after the fracture has healed. The linear static responses to tensile and torsional loads with and without bone plates are examined. The static response trends obtained agree reasonably well with current literature where more expensive modeling techniques were used. A fatigue analysis is also performed based on the FE static results coupled with S-N curves for the plate and bone material in order to predict the combined mechanical response of the bone plate system over time. Recommendations are suggested which may be used as additional guidelines to consider for bone plate system selection and determination of hardware removal.
机译：使用有限元方法（FEM）开发并分析了具有用于中轴骨折的内部固定系统的半径的廉价型号。 FE模型基于从简单但有效的制造方法获得的几何体。用于健康成年男性的中颌骨状和皮质骨机械性能用于FEM模型。这些模型用于量化在裂缝愈合后保留内部固定装置时发生的骨应力的变化。检查有带有骨板的拉伸和扭转载荷的线性静态响应。所获得的静态反应趋势与当前文献相当良好，其中使用了更昂贵的建模技术。还基于与板和骨材料的S-N曲线耦合的Fe静态结果进行疲劳分析，以预测骨板系统随时间的组合机械响应。建议建议，这可以用作考虑骨板系统选择和硬件去除的测定的其他指导方针。

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