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Main Title: In Silico Optimization of Femoral Fixator Position and Configuration by Parametric CAD Model
Author(s): Korunovic, Nikola
Marinković, Dragan
Trajanovic, Miroslav
Zehn, Manfred
Mitkovic, Milorad
Affatato, Saverio
Type: Article
Language Code: en
Abstract: 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.
Issue Date: 22-Jul-2019
Date Available: 26-Aug-2019
DDC Class: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Subject(s): orthopedic
parametric CAD model
finite element method
structural optimization
Journal Title: Materials
Publisher: MDPI
Publisher Place: Basel
Volume: 12
Issue: 14
Article Number: 2326
Publisher DOI: 10.3390/ma12142326
EISSN: 1996-1944
Appears in Collections:FG Strukturmechanik und Strukturberechnung » Publications

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