Orbital stress analysis, part V: systematic approach to validate a finite element model of a human orbit

The Journal of Craniofacial Surgery
Jehad Al-SukhunNureddin Ashammakhi

Abstract

The progress in computer technology and the increased use of finite element analysis in the medical field by nonengineers and medical researchers lead us to believe that there is a need to develop a systematic approach to validate a finite element model (FEM), of a human orbit, that simulates part of the maxillofacial skeleton and to investigate the effects and the clinical significance of changing the geometry, boundary conditions, that is, muscle forces, and orthotropic material properties on the predictive outcome of an FEM of a human orbit. Forty-seven variables affecting the material properties, boundary conditions, and the geometry of an FEM of a human orbit including the globe were systematically changed, creating a number of FEMs of the orbit. The effects of the variations were quantified as differences in the principal strain magnitudes modeled by the original FEM (criterion standard), before the sensitivity analyses, and those generated by the changed FEMs. The material properties that had the biggest impact on the predicted principal strains were the shear moduli (up to 21%) and the absence of fatty tissue (up to 75%). The boundary condition properties that had the biggest impact on the predicted principal strains we...Continue Reading

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Citations

Jun 1, 2018·Annals of Plastic Surgery·Sathyadeepak RameshRobert Goldberg
Sep 19, 2020·Scientific Reports·Marcin Adam Zmuda TrzebiatowskiMateusz Koberda
Feb 6, 2021·Scientific Reports·Fatemeh RajaiiSeth Blackshaw
Mar 23, 2021·Applied Bionics and Biomechanics·Marcin A Zmuda TrzebiatowskiMateusz Koberda
Oct 6, 2018·Journal of Stomatology, Oral and Maxillofacial Surgery·J M FolettiL Guyot
Nov 20, 2018·Journal of Stomatology, Oral and Maxillofacial Surgery·J M FolettiL Thollon
Nov 6, 2021·PloS One·Krzysztof ZerdzickiMateusz Koberda

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