用于治疗颌面骨折的患者专用微型钢板的设计与研制——有限元研究

Sandeep Choudhury, Anik Banerjee, S. Majumder, A. Roychowdhury
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引用次数: 0

摘要

颌面骨折在发达国家和发展中国家都很普遍。颌面部骨折主要是由于车祸、人身攻击和袭击等事故造成的。尽管使用微型钢板治疗颌面部骨折是一种被广泛接受的做法,但挑战在于根据每位患者的具体骨折尺寸选择合适的微型钢板尺寸。该研究旨在评估和确定用于固定骨折下颌骨的2孔微型钢板和4孔微型钢板之间最合适的设计,最终目标是为每位患者创建定制的解决方案。选择对角线长度为82mm的下颌骨模型,在实体模型的左颊舌部分创建1mm至3mm的垂直骨折间隙。设计了不同厚度(1mm ~ 2mm)和间隙距离(6mm ~ 12mm)的2孔和4孔微型板。这些小板被放在一起做成了一个下颌骨模型。为了验证其有效性,使用有限元分析对下颌骨模型和钢板的组合进行了各种肌肉力以及咬合力的测试。在下颌骨位置,与两孔微型钢板组合相比,四孔微型钢板植入具有更好的稳定性。微型钢板的大小和尺寸可以根据下颌骨骨折的大小进行调整,从而为下颌骨植入微型钢板提供患者特异性解决方案。
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Design and Development of Patient-specific Miniplate for the Treatment of Maxillofacial Fractures-A Finite Element Study
Fractures of the maxillofacial region are prevalent in both developed and developing nations. Maxillofacial fractures primarily occur as a result of incidents such as car crashes, physical assaults, and attacks. Although using miniplates to treat maxillofacial fractures is a widely accepted practice, the challenge lies in selecting the appropriate miniplate size that is tailored to the specific dimensions of the fracture in each patient. The study aims to evaluate and determine the most suitable design between a 2-hole miniplate and a 4-hole miniplate for securing a fractured mandible, with the ultimate goal of creating a customized solution for each patient. A mandible model is chosen with a diagonal length of 82mm and created perpendicular fracture gaps measuring 1mm to 3mm on the left buccolingual section of the solid model. A 2-hole and a 4-hole miniplate are designed with different thicknesses (ranging from 1mm to 2mm) and gap distances (ranging from 6mm to 12mm). The miniplates were put together in a model of the mandible. To test their effectiveness, the combination of the mandible model and plates was subjected to various muscle forces, as well as the force of biting, using finite element analysis. At the mandible location, the four-hole miniplate implantation exhibits superior stabilization in comparison to the two-hole miniplate assembly. The miniplate's size and dimensions can be adjusted depending on the size of the fracture in the mandible, resulting in a patient-specific solution for the implantation of miniplate in the mandible.
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