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Subject‐Specific Finite Element Simulation of Bone Grafting Procedure for Osteonecrosis of Femoral Head

Zhi‐Qiang Lian (State Key Laboratory of Structural Analysis for Industrial Equipment, Dept. of Engineering Mechanics, Dalian University of Technology, Dalian, 116023, China)
Yuan‐Xian Gu (State Key Laboratory of Structural Analysis for Industrial Equipment, Dept. of Engineering Mechanics, Dalian University of Technology, Dalian, 116023, China)
Hong‐Wu Zhang (State Key Laboratory of Structural Analysis for Industrial Equipment, Dept. of Engineering Mechanics, Dalian University of Technology, Dalian, 116023, China)

Multidiscipline Modeling in Materials and Structures

ISSN: 1573-6105

Article publication date: 1 April 2008

Abstract

Based on the unilateral CT images of a patient in stage III for osteonecrosis of the femoral head, three subject‐specific three‐dimensional finite element models of proximal femur are developed by reverse engineering method, including normal model, necrosis model and prothetic model. Based on the same CT set, the material properties are assigned to each finite element model. Then, by finite element analysis, the process of bone grafting for osteonecrosis of the femoral head is simulated. The results indicate that when the necrosis parts of femoral head are removed, the stresses and displacements of proximal femur increase correspondingly, but after the surgery of bone grafting, the stresses and displacements of proximal femur efficiently decrease and become more close to the normal state. The results are useful for a better understanding of the procedure of the bone grafting surgery.

Keywords

Citation

Lian, Z., Gu, Y. and Zhang, H. (2008), "Subject‐Specific Finite Element Simulation of Bone Grafting Procedure for Osteonecrosis of Femoral Head", Multidiscipline Modeling in Materials and Structures, Vol. 4 No. 4, pp. 359-368. https://doi.org/10.1163/157361108785963019

Publisher

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Emerald Group Publishing Limited

Copyright © 2008, Emerald Group Publishing Limited