Biomechanical analysis of a cranial Patient Specific Implant on the interface with the bone using the Finite Element Method

TL;DR

This study uses finite element analysis to evaluate the mechanical performance of a patient-specific cranial implant, focusing on stress distribution and failure criteria to optimize design and material choice.

Contribution

It introduces a biomechanical analysis framework for cranial PSIs using finite element method to assess performance and guide design improvements.

Findings

Identified high-stress regions in the implant and skull.

Assessed failure criteria for different materials.

Provided insights for optimizing implant design.

Abstract

- New advance technologies based on reverse engineering , design and additive manufacturing, have expanded design capabilities for biomedical applications to include Patient Specific Implants (PSI). This change in design paradigms needs advanced tools to assess the mechanical performance of the product, and simulate the impact on the patient. In this work, we perform a structural analysis on the interface of a cranial PSI under static loading conditions. Based on those simulations, we have identified the regions with high stress and strain and checked the failure criteria both in the implant and the skull. We evaluate the quality of the design of the implant and determine their response given different materials, in order to ensure optimality of the final product to be manufactured .