Ai’man A’siqin, Zulkefli and Muhammad Hazli, Mazlan and Takano, Hiromitsu and Abdul Halim, Abdullah and Muhammad Hilmi, Jalil and Mohammad Azeeb, Mazlan (2024) Analysis re-entrant honeycomb auxetic structure for lumbar vertebrae using finite element analysis. ARPN Journal of Engineering and Applied Sciences, 19 (9). pp. 546-555. ISSN 1819-6608. (Published)
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Abstract
Lumbar spinal fusion is a frequent surgical solution among people who are experiencing severe persistent lower back pain. One treatment option is Lateral Lumbar Interbody Fusion (LLIF) surgery. In the medical field, finite element analysis (FEA) can be used to predict the best surgical plan. LLIF surgery involves implanting an interbody cage into the disc space, which may potentially move to regain the disk height while helping stabilize the vertebral bones. In this study, FEA was applied using Mechanical Finder software (MF) to develop a 3D spine model lumbar vertebrae of the fourth and fifth lumbar vertebrae (L4 - L5) with the interbody cage design. The cage was made of polyether ether ketone (PEEK) and designed using Solidworks software. Given the auxetic structure's outstanding energy absorption capabilities, a re-entrant auxetic structure core with a novel sandwich panel was implanted between the lumbar vertebrae L4 and L5, as determined by CT scans using MF software. The model was analyzed in MF to assess the strength and fracture risk analysis of the interbody cage, with the results compared to mechanical properties values obtained by applying compression load (1000 N) to simulate spinal movements. Stress and strain distribution rates were exhibited when applying a force of 1000 N. The findings underscore the relevance of cage design, namely the surface endplate, in mitigating undesirable occurrences associated with cage sinking. To attain enough strength under typical conditions, a lumbar cage with a re-entrant auxetic construction has been proposed. for lumbar vertebrae using finite element analysis
| Item Type: | Article |
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| Additional Information: | Indexed by Scopus |
| Uncontrolled Keywords: | Finite element analysis; Fracture risks; Re-entrant auxetic structure; Sandwich panel |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery |
| Faculty/Division: | Faculty of Mechanical and Automotive Engineering Technology |
| Depositing User: | Mrs. Nurul Hamira Abd Razak |
| Date Deposited: | 30 May 2025 07:58 |
| Last Modified: | 30 May 2025 07:58 |
| URI: | http://umpir.ump.edu.my/id/eprint/44684 |
| Download Statistic: | View Download Statistics |
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