Design, 3D Development and Finite Element Analysis of Cylindrical Mesh Cage Bioimplants from Biometals Design, 3D Development and Finite Element Analysis of Cylindrical Mesh Cage Bioimplants from Biometals

Design, 3D Development and Finite Element Analysis of Cylindrical Mesh Cage Bioimplants from Biometals

Harbhajan Ahirwar, Himansu Sekhar Nanda*

Biomedical Engineering and Technology Laboratory, Discipline of Mechanical Engineering, Indian Institute of Information Technology Design and Manufacturing Jabalpur - 482005, Madhya Pradesh, India

Adv. Mater. Lett., 2021, 12 (6), 21061641

DOI: 10.5185/amlett.2021.061641

Publication Date (Web): Mar 25, 2021

E-mail: himansu@iiitdmj.ac.in

Abstract


The current research is aimed at design and 3D development of a degradable cylindrical mesh cage porous bioimplant for fixation to a segmental femur bone defect. The finite element analysis (FEA) was carried out to obtain the bone-bioimplant interface deformation and stress generated. The cylindrical mesh cage bioimplant was designed using a range of metallic biomaterials such as Magnesium (Mg) alloy (AZ31), Ti alloy (Ti-6Al-4V) and Stainless Steel (SS316L). The FEA was carried out for bone-bioimplant assembly in static and dynamic conditions. FEA results demonstrated that the values of the interface von-mises stress for the AZ31 Mg-alloy based bioimplant  could fall with in the clinical acceptable domain at which the stress sheilding issues could be avoided. The results further suggested that Mg-based bioimplants could be promising and better alternative for use as a porous scaffold for repair and regeneration of a segmental femur bone defect.

Keywords

Bioimplants, biomaterials, porous scaffolds, cylindrical mesh cage scaffold, segmental bone defect, Finite Element Analysis (FEA).

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