In Silico Optimization of Femoral Fixator Position and Configuration by Parametric CAD Model

Structural analysis, based on the finite element method, and structural optimization, can help surgery planning or decrease the probability of fixator failure during bone healing. Structural optimization implies the creation of many finite element model instances, usually built using a computer-aide...

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Autores principales: Korunovic, Nikola, Marinkovic, Dragan, Trajanovic, Miroslav, Zehn, Manfred, Mitkovic, Milorad, Affatato, Saverio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6679040/
https://www.ncbi.nlm.nih.gov/pubmed/31336577
http://dx.doi.org/10.3390/ma12142326
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author Korunovic, Nikola
Marinkovic, Dragan
Trajanovic, Miroslav
Zehn, Manfred
Mitkovic, Milorad
Affatato, Saverio
author_facet Korunovic, Nikola
Marinkovic, Dragan
Trajanovic, Miroslav
Zehn, Manfred
Mitkovic, Milorad
Affatato, Saverio
author_sort Korunovic, Nikola
collection PubMed
description Structural analysis, based on the finite element method, and structural optimization, can help surgery planning or decrease the probability of fixator failure during bone healing. Structural optimization implies the creation of many finite element model instances, usually built using a computer-aided design (CAD) model of the bone-fixator assembly. The three most important features of such CAD models are: parameterization, robustness and bidirectional associativity with finite elements (FE) models. Their significance increases with the increase in the complexity of the modeled fixator. The aim of this study was to define an automated procedure for the configuration and placement of fixators used in the treatment of long bone fractures. Automated and robust positioning of the selfdynamisable internal fixator on the femur was achieved and sensitivity analysis of fixator stress on the change of major design parameters was performed. The application of the proposed methodology is considered to be beneficial in the preparation of CAD models for automated structural optimization procedures used in long bone fixation.
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spelling pubmed-66790402019-08-19 In Silico Optimization of Femoral Fixator Position and Configuration by Parametric CAD Model Korunovic, Nikola Marinkovic, Dragan Trajanovic, Miroslav Zehn, Manfred Mitkovic, Milorad Affatato, Saverio Materials (Basel) Article Structural analysis, based on the finite element method, and structural optimization, can help surgery planning or decrease the probability of fixator failure during bone healing. Structural optimization implies the creation of many finite element model instances, usually built using a computer-aided design (CAD) model of the bone-fixator assembly. The three most important features of such CAD models are: parameterization, robustness and bidirectional associativity with finite elements (FE) models. Their significance increases with the increase in the complexity of the modeled fixator. The aim of this study was to define an automated procedure for the configuration and placement of fixators used in the treatment of long bone fractures. Automated and robust positioning of the selfdynamisable internal fixator on the femur was achieved and sensitivity analysis of fixator stress on the change of major design parameters was performed. The application of the proposed methodology is considered to be beneficial in the preparation of CAD models for automated structural optimization procedures used in long bone fixation. MDPI 2019-07-22 /pmc/articles/PMC6679040/ /pubmed/31336577 http://dx.doi.org/10.3390/ma12142326 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Korunovic, Nikola
Marinkovic, Dragan
Trajanovic, Miroslav
Zehn, Manfred
Mitkovic, Milorad
Affatato, Saverio
In Silico Optimization of Femoral Fixator Position and Configuration by Parametric CAD Model
title In Silico Optimization of Femoral Fixator Position and Configuration by Parametric CAD Model
title_full In Silico Optimization of Femoral Fixator Position and Configuration by Parametric CAD Model
title_fullStr In Silico Optimization of Femoral Fixator Position and Configuration by Parametric CAD Model
title_full_unstemmed In Silico Optimization of Femoral Fixator Position and Configuration by Parametric CAD Model
title_short In Silico Optimization of Femoral Fixator Position and Configuration by Parametric CAD Model
title_sort in silico optimization of femoral fixator position and configuration by parametric cad model
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6679040/
https://www.ncbi.nlm.nih.gov/pubmed/31336577
http://dx.doi.org/10.3390/ma12142326
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