A simplified application (APP) for the parametric design of screw-plate fixation of bone fractures

作者：Chung Chen Yuan^*

来源：Journal of the Mechanical Behavior of Biomedical Materials, 2018, 77: 642-648.

DOI：10.1016/j.jmbbm.2017.10.025

• Application (APP)
• Analytical approach
• Stress shielding
• Interfragmentary strain

Screw and plate fixation is commonly used to treat bone fractures. A prototype application (APP) for presurgical simulation was developed and validated by comparing it with current analytical approach and other models. In this APP, alternative plate designs and materials to limit the effects of stress shielding could be tested. In addition, the number and position of screws and the gap between bone and plate that achieved acceptable stability were predicted. The fixation stability providing a situation of interfragmentary strain between 2% and 10% is necessary for callus formation. However, improving the fixation stability leads to a stress shielding effect. The simultaneous alleviation of stress shielding and maintenance of stability are important in fracture healing. In this study, the feasibility of creating a specialized APP to evaluate different screw-plate configurations for diaphyseal femoral fractures was investigated. The ultimate goal is to extend this technique to computer-assisted preoperative planning for orthopedic surgery.

• 出版日期2018-1
• 单位中央民族大学