Biomechanical properties of artificial bones made by Sawbones: A review.

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Abstract

[Indexed for MEDLINE] 13. Med Biol Eng Comput. 2023 Dec;61(12):3233-3252. doi: 10.1007/s11517-023-02900-4. Epub 2023 Sep 11. Design considerations for patient-specific bone fixation plates: a literature review. Brouwer de Koning SG(#)(1), de Winter N(#)(1), Moosabeiki V(2), Mirzaali MJ(2), Berenschot A(3), Witbreuk MMEH(4), Lagerburg V(5). Author information: (1)Medical Physics, OLVG Hospital, Oosterpark 9, 1091 AC, Amsterdam, The Netherlands. (2)Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, Delft, The Netherlands. (3)Medical Library, Department of Research and Epidemiology, OLVG Hospital, Amsterdam, The Netherlands. (4)Orthopedic Surgery, OLVG Hospital, Amsterdam, The Netherlands. (5)Medical Physics, OLVG Hospital, Oosterpark 9, 1091 AC, Amsterdam, The Netherlands. v.lagerburg@antoniusziekenhuis.nl. (#)Contributed equally 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. © 2023. International Federation for Medical and Biological Engineering. DOI: 10.1007/s11517-023-02900-4