Influence of anisotropic bone properties on the biomechanical behavior of the acetabular cup implant: a multiscale finite element study

Although the biomechanical behavior of the acetabular cup (AC) implant is determinant for the surgical success, it remains difficult to be assessed due to the multiscale and anisotropic nature of bone tissue. The aim of the present study was to investigate the influence of the anisotropic properties...

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Vydané v:Computer Methods in Biomechanics and Biomedical Engineering Ročník 20; číslo 12; s. 1312 - 1325
Hlavní autori: Nguyen, Vu-Hieu, Rosi, Giuseppe, Naili, Salah, Michel, Adrien, Raffa, Maria-Letizia, Bosc, Romain, Meningaud, Jean-Paul, Chappard, Christine, Takano, Naoki, Haiat, Guillaume
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: England Taylor & Francis 10.09.2017
Informa UK Limited
Taylor & Francis Ltd
Predmet:
[SPI.GCIV.STRUCT] Engineering Sciences [physics]/Civil Engineering/Structures
[SPI.MECA.BIOM] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Biomechanics [physics.med-ph]
[SPI.MECA.SOLID]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Solid mechanics [physics.class-ph]
[SPI.MECA.STRU] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph]
Acetabular components
Acetabular cup
Acetabulum
Acetabulum - physiology
Animals
Anisotropy
Asymptotic methods
Asymptotic properties
Biomechanical Phenomena
Biomechanics
bone
Bones
Cancellous bone
Cattle
Civil Engineering
Computed tomography
Computer simulation
Engineering Sciences
Equatorial regions
Finite Element Analysis
Finite element method
homogenization
Horizontal loads
Mathematical analysis
Mechanical loading
Mechanical properties
Mechanics
Multiscale analysis
Organ Size
Prostheses and Implants
Solid mechanics
Stiffness
Stress, Mechanical
Stresses
Structural mechanics
Structures
Three dimensional models
total hip replacement
Vertical loads
X-Ray Microtomography
Acetabular cup
total hip replacement
homogenization
bone
finite element analysis
ISSN:1025-5842, 1476-8259, 1476-8259
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Shrnutí:Although the biomechanical behavior of the acetabular cup (AC) implant is determinant for the surgical success, it remains difficult to be assessed due to the multiscale and anisotropic nature of bone tissue. The aim of the present study was to investigate the influence of the anisotropic properties of peri-implant trabecular bone tissue on the biomechanical behavior of the AC implant at the macroscopic scale. Thirteen bovine trabecular bone samples were imaged using micro-computed tomography (μCT) with a resolution of 18 μm. The anisotropic biomechanical properties of each sample were determined at the scale of the centimeter based on a dedicated method using asymptotic homogenization. The material properties obtained with this multiscale approach were used as input data in a 3D finite element model to simulate the macroscopic mechanical behavior of the AC implant under different loading conditions. The largest stress and strain magnitudes were found around the equatorial rim and in the polar area of the AC implant. All macroscopic stiffness quantities were significantly correlated (R 2  > 0.85, p < 6.5 e-6) with BV/TV (bone volume/total volume). Moreover, the maximum value of the von Mises stress field was significantly correlated with BV/TV (R 2  > 0.61, p < 1.6 e-3) and was always found at the bone-implant interface. However, the mean value of the microscopic stress (at the scale of the trabeculae) decrease as a function of BV/TV for vertical and torsional loading and do not depend on BV/TV for horizontal loading. These results highlight the importance of the anisotropic properties of bone tissue.
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ISSN:1025-5842
1476-8259
1476-8259
DOI:10.1080/10255842.2017.1357703