Quasi-static analysis of hip cement spacers
| Autor: | Mokhtar Khaldi, Belabbes Bachir Bouiadjra, Richie Gill, Habiba Bougherara, Mohammed Mokhtar Bouziane, Abdelkader Miloudi, Abdelhafid Mallek |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Biomedical Engineering 02 engineering and technology Biomaterials Quasi-static 03 medical and health sciences 0302 clinical medicine Brittle cracking Ceramic Reinforcement Extended finite element method Titanium XFEM business.industry Bone Cements 030206 dentistry Structural engineering Stainless Steel 021001 nanoscience & nanotechnology Bone cement Durability Finite element method Anti-Bacterial Agents Mechanics of Materials visual_art Fracture (geology) visual_art.visual_art_medium Hip Prosthesis 0210 nano-technology business Orthopedic hip spacer Quasistatic process |
| Zdroj: | Mallek, A, Miloudi, A, Khaldi, M, Bouziane, M M, Bouiadjra, B B, Bougherara, H & Gill, R H S 2021, ' Quasi-static analysis of hip cement spacers ', Journal of the Mechanical Behavior of Biomedical Materials, vol. 116, 104334 . https://doi.org/10.1016/j.jmbbm.2021.104334 |
| ISSN: | 1751-6161 |
| DOI: | 10.1016/j.jmbbm.2021.104334 |
| Popis: | The use of temporary hip prosthesis made of orthopedic cement (spacer) in conjunction with antibiotics became a widespread method used for treating prosthetic infections despite the fact that this method makes bone cement (PMMA) more fragile. The necessity to incorporate reinforcement is therefore crucial to strengthen the bone cement. In this study, a validated Finite Element Modelling (FEM) was used to analyze the behavior of spacers. This FEM model uses a non-linear dynamic explicit integration to simulate the mechanical behavior of the spacer under quasi-static loading. In addition to this FEM, Extended Finite Element Method (XFEM) was also used to investigate the fracture behavior of the spacers reinforced with titanium, ceramic and stainless-steel spacer stems. The effect of the material on the performance of the reinforced spacers was also analyzed. The results showed that numerical modelling based on explicit finite element using ABAQUS/Explicit is an effective method to predict the different spacers' mechanical behavior. The simulated crack initiation and propagation were in a good agreement with experimental observations. The FEM models developed in this study can help mechanical designers and engineers to improve the prostheses’ quality and durability. |
| Databáze: | OpenAIRE |
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