Finite Element Analysis of Patient Specific Bone Plate with Ti6Al4V Material Selection

Abstract

A patient-specific implant is a designed implant that considers the needs of a specialized patients condition. In several surgical cases, the implant design needs to be adjusted based on the patient bones surface to suit the bone morphometry. This study aims to conduct the finite element analysis to investigate the stress distribution alongside the plate to consider clinical implementation. A bone plate has been designed following an adult pelvic bone shape for the pelvic fractures clinical case management. An FEA was accomplished to analyse the implant designs performance and estimate the installations clinical failures before the manufacturing process. The FEA calculation achieved the highest number of von misses stresses (VM) on the pelvic bone plate by 3.616 MPa. The obtained VM number on the simulation is smaller than the yield strength of Ti6Al4V. It concludes that the customized iliac plates design using Ti6Al4V can have excellent mechanical strength and can withstand the loading. Additional similar simulation using another software strengthen the results.

Comparative Studies Simulation Software for Bone Plate Compression

“…In previous study, a designed patient-specific implant for iliac bone has been simulated using two different software of Autodesk Inventor and ABAQUS [20]. It produced significant differences on the maximum number from FEA simulations when adjusted with a 307 N of loads [23].…”

“…Almost all authors will only choose one of those software as the FEA simulation tool for their designs. Based on the last research of FEA on a bone plate for a patient-specific implant, the authors try to simulate the FEA using Inventor and an additional comparison using ABAQUS [20]. The study's result shows a significant difference in the number for the VMS.…”

Analisis Tegangan Pada Bone Plate Stainless Steel 316L untuk Aplikasi Biomateria

“…Penelitian analisis finite elemen juga dilakukan oleh Thalita (2021) dengan menggunakan Ti6Al4V. Material tersebut menunjukkan sifat mekanik yang baik saat menahan beban (Asmaria et al, 2021). Khristina (2010) telah melakukan analisis pada finite elemen dengan menggunakan biomaterial pelindung tegangan di sekitar tulang.…”

“…Khristina (2010) telah melakukan analisis pada finite elemen dengan menggunakan biomaterial pelindung tegangan di sekitar tulang. Metode ini dapat menurunkan kehilangan tulang, pergeseran screw dan menjaga plat lebih stabil (Asmaria et al, 2021). Penelitian di atas perlu ditambahkan dengan variasi gaya tekan yang dihadapi oleh tulang.…”