Muhammad Ajmal, Mohd Taqayuddin and Mohd Afzan, Mohd Anuar and Solehuddin, Shuib and Zulkifli, Mohamed and Anwar, P. P. Abdul Majeed (2018) Mechanics of total ankle replacement during flexion in relation to geometrical design: a finite element study. International Journal of Engineering & Technology, 7 (4). pp. 70-72. ISSN 2227-524X. (Published)
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Abstract
Total ankle replacement (TAR) procedure is carried out to reduce the pain due to arthritis and trauma in patients. The failure of TAR implants occurs through various wear mechanisms in the polyethylene due to high ankle load, leads to instability as well as loosening problem. The objective of this project is to assess the performance of Salto Talaris (TAR) implants before and after design modification. In the present study, the computational model of Salto Talaris and the modified design was developed using CATIA V5R20 while the finite element analysis (FEA) was performed in ANSYS V18. The results have shown that the maximum von Mises stress induced in the polyethylene insert for Salto Talaris and the new design were 13.9 MPa and 8.7 MPa, respectively, with applied 880 N of axial ankle load. The modified version exhibited better performance due to elimination of edge loading with good contact area. Design modification is essential to lower the stress induced at PE insert, hence reduce the failure of TAR prosthesis.
| Item Type: | Article |
|---|---|
| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Total ankle replacement; Polyethylene insert; Finite element analysis; Von Mises stress |
| Subjects: | T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | Faculty of Manufacturing Engineering |
| Depositing User: | Mrs Norsaini Abdul Samat |
| Date Deposited: | 07 Nov 2022 09:34 |
| Last Modified: | 07 Nov 2022 09:34 |
| URI: | http://umpir.ump.edu.my/id/eprint/29356 |
| Download Statistic: | View Download Statistics |
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