CT-FEA of inhomogeneous lumbar with different loadings of the spinal cage
Interbody fusion has recently been successfully used to treat degenerative spinal instability. Without needing to test it in vitro, finite element analysis (FEA) was used to reflect the biomechanical interaction between lumbars and cages. However, the complex geometry of the lumbar region was not ac...
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| Format: | Article |
| Language: | English |
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Universiti Malaysia Pahang
2023
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| Online Access: | http://umpir.ump.edu.my/id/eprint/40091/1/CT_FEA%20of%20Inhomogeneous%20Lumbar%20with%20Different%20Loadings%20of%20the%20Spinal%20Cage.pdf |
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| author | Muhammad Shahruddin, Azmi Munirah, Mohamad Izham Muhammad Hilmi, Jalil Muhammad Hazli, Mazlan |
| author_facet | Muhammad Shahruddin, Azmi Munirah, Mohamad Izham Muhammad Hilmi, Jalil Muhammad Hazli, Mazlan |
| author_sort | Muhammad Shahruddin, Azmi |
| collection | UMP |
| description | Interbody fusion has recently been successfully used to treat degenerative spinal instability. Without needing to test it in vitro, finite element analysis (FEA) was used to reflect the biomechanical interaction between lumbars and cages. However, the complex geometry of the lumbar region was not accurately modeled by the numerous studies that relied on homogenous, simplified models. This study aims to fill this knowledge gap by creating an inhomogenous lumbar model and using computed tomography finite element analysis (CT-FEA) to assess the biomechanical characteristics of a spinal cage implanted in the model. CT images were used to create a 3D inhomogenous lumbar model of L4-L5. In order to assess the biomechanical characteristics of the implanted cage, a spinal cage was inserted between the lumbar model, and the model was subjected to FEA with loads ranging from 500 N to 1200 N. As the load applied to the assembled model varied from 500 N to 1200 N, the results showed that the maximum principal's stress increased. With values of 12.33 MPa and 0.102 Pa, respectively, the von Mises stress for a load of 500 N had the lowest maximum and minimum values. At 1200 N of force, the highest stress was indicated by the maximum and minimum values of the Von Mises Stress, which were 30.37 MPa and 0.244 Pa, respectively. The stress distribution demonstrated that the inhomogeneous lumbar model was applicable and that using FEA could produce promising results. The significance of taking into account the spinal cages' biomechanical characteristics in non-homogeneous lumbar models is shown by this study. CT-FEA can be a valuable tool for assessing the biomechanical characteristics of spinal cages in non-homogeneous lumbar models. The significance of taking into account the spinal cages' biomechanical characteristics in non-homogeneous lumbar models is shown by this study. |
| first_indexed | 2024-03-06T13:13:12Z |
| format | Article |
| id | UMPir40091 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T13:13:12Z |
| publishDate | 2023 |
| publisher | Universiti Malaysia Pahang |
| record_format | dspace |
| spelling | UMPir400912024-01-18T07:37:25Z http://umpir.ump.edu.my/id/eprint/40091/ CT-FEA of inhomogeneous lumbar with different loadings of the spinal cage Muhammad Shahruddin, Azmi Munirah, Mohamad Izham Muhammad Hilmi, Jalil Muhammad Hazli, Mazlan TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Interbody fusion has recently been successfully used to treat degenerative spinal instability. Without needing to test it in vitro, finite element analysis (FEA) was used to reflect the biomechanical interaction between lumbars and cages. However, the complex geometry of the lumbar region was not accurately modeled by the numerous studies that relied on homogenous, simplified models. This study aims to fill this knowledge gap by creating an inhomogenous lumbar model and using computed tomography finite element analysis (CT-FEA) to assess the biomechanical characteristics of a spinal cage implanted in the model. CT images were used to create a 3D inhomogenous lumbar model of L4-L5. In order to assess the biomechanical characteristics of the implanted cage, a spinal cage was inserted between the lumbar model, and the model was subjected to FEA with loads ranging from 500 N to 1200 N. As the load applied to the assembled model varied from 500 N to 1200 N, the results showed that the maximum principal's stress increased. With values of 12.33 MPa and 0.102 Pa, respectively, the von Mises stress for a load of 500 N had the lowest maximum and minimum values. At 1200 N of force, the highest stress was indicated by the maximum and minimum values of the Von Mises Stress, which were 30.37 MPa and 0.244 Pa, respectively. The stress distribution demonstrated that the inhomogeneous lumbar model was applicable and that using FEA could produce promising results. The significance of taking into account the spinal cages' biomechanical characteristics in non-homogeneous lumbar models is shown by this study. CT-FEA can be a valuable tool for assessing the biomechanical characteristics of spinal cages in non-homogeneous lumbar models. The significance of taking into account the spinal cages' biomechanical characteristics in non-homogeneous lumbar models is shown by this study. Universiti Malaysia Pahang 2023-12 Article PeerReviewed pdf en cc_by_nc_4 http://umpir.ump.edu.my/id/eprint/40091/1/CT_FEA%20of%20Inhomogeneous%20Lumbar%20with%20Different%20Loadings%20of%20the%20Spinal%20Cage.pdf Muhammad Shahruddin, Azmi and Munirah, Mohamad Izham and Muhammad Hilmi, Jalil and Muhammad Hazli, Mazlan (2023) CT-FEA of inhomogeneous lumbar with different loadings of the spinal cage. International Journal of Automotive and Mechanical Engineering (IJAME), 20 (4). 10894 -10905. ISSN 2229-8649 (Print); 2180-1606 (Online). (Published) https://doi.org/10.15282/ijame.20.4.2023.07.0842 https://doi.org/10.15282/ijame.20.4.2023.07.0842 |
| spellingShingle | TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Muhammad Shahruddin, Azmi Munirah, Mohamad Izham Muhammad Hilmi, Jalil Muhammad Hazli, Mazlan CT-FEA of inhomogeneous lumbar with different loadings of the spinal cage |
| title | CT-FEA of inhomogeneous lumbar with different loadings of the spinal cage |
| title_full | CT-FEA of inhomogeneous lumbar with different loadings of the spinal cage |
| title_fullStr | CT-FEA of inhomogeneous lumbar with different loadings of the spinal cage |
| title_full_unstemmed | CT-FEA of inhomogeneous lumbar with different loadings of the spinal cage |
| title_short | CT-FEA of inhomogeneous lumbar with different loadings of the spinal cage |
| title_sort | ct fea of inhomogeneous lumbar with different loadings of the spinal cage |
| topic | TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics |
| url | http://umpir.ump.edu.my/id/eprint/40091/1/CT_FEA%20of%20Inhomogeneous%20Lumbar%20with%20Different%20Loadings%20of%20the%20Spinal%20Cage.pdf |
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