Medical Physics, OLVG Hospital, Oosterpark 9, 1091 AC, Amsterdam, The Netherlands.
Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, Delft, The Netherlands.
Med Biol Eng Comput. 2023 Dec;61(12):3233-3252. doi: 10.1007/s11517-023-02900-4. Epub 2023 Sep 11.
In orthopedic surgery, patient-specific bone plates are used for fixation when conventional bone plates do not fit the specific anatomy of a patient. However, plate failure can occur due to a lack of properly established design parameters that support optimal biomechanical properties of the plate.This review provides an overview of design parameters and biomechanical properties of patient-specific bone plates, which can assist in the design of the optimal plate.A literature search was conducted through PubMed and Embase, resulting in the inclusion of 78 studies, comprising clinical studies using patient-specific bone plates for fracture fixation or experimental studies that evaluated biomechanical properties or design parameters of bone plates. Biomechanical properties of the plates, including elastic stiffness, yield strength, tensile strength, and Poisson's ratio are influenced by various factors, such as material properties, geometry, interface distance, fixation mechanism, screw pattern, working length and manufacturing techniques.Although variations within studies challenge direct translation of experimental results into clinical practice, this review serves as a useful reference guide to determine which parameters must be carefully considered during the design and manufacturing process to achieve the desired biomechanical properties of a plate for fixation of a specific type of fracture.
在骨科手术中，当常规骨板不符合患者特定解剖结构时，使用患者特异性骨板进行固定。然而，由于缺乏支持板最佳生物力学性能的适当确立的设计参数，可能会发生板失效。本综述提供了患者特异性骨板的设计参数和生物力学特性的概述，这有助于设计最佳的骨板。通过 PubMed 和 Embase 进行了文献检索，纳入了 78 项研究，包括使用患者特异性骨板进行骨折固定的临床研究或评估骨板生物力学性能或设计参数的实验研究。板的生物力学性能，包括弹性刚度、屈服强度、拉伸强度和泊松比，受多种因素的影响，如材料特性、几何形状、界面距离、固定机制、螺钉模式、工作长度和制造技术。尽管研究中的差异使得难以将实验结果直接转化为临床实践，但本综述可作为有用的参考指南，以确定在设计和制造过程中必须仔细考虑哪些参数，以实现特定类型骨折固定的板的理想生物力学性能。
