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Biomedical Analysis of Lateral Lumbar Interbody Fusion (LLIF) Cage for Lumbar Vertebrae

Objective: To develop the interbody cages implanted between the lumbar vertebrae by evaluating the strength of the bone model and the spinal cage. Materials and methods: In this study, finite element analysis (FEA) was applied using Mechanical Finder software (MF) to develop a 3D spine model lumba...

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Main Authors: Zulkefli, Aiman Asiqin, Mazlan, Muhammad Hazli, Takano, Hiromitsu, Md Salleh, Nur Saliha, Jalil, Muhammad Hilmi
Format: Article
Language:English
Published: 2023
Subjects:
RD Surgery
Online Access:http://eprints.uthm.edu.my/12387/1/J17847_2bb6b9dbd09feedc8bd464e64f9c59c0.pdf
http://eprints.uthm.edu.my/12387/
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spelling my.uthm.eprints.123872025-02-24T08:43:28Z http://eprints.uthm.edu.my/12387/ Biomedical Analysis of Lateral Lumbar Interbody Fusion (LLIF) Cage for Lumbar Vertebrae Zulkefli, Aiman Asiqin Mazlan, Muhammad Hazli Takano, Hiromitsu Md Salleh, Nur Saliha Jalil, Muhammad Hilmi RD Surgery Objective: To develop the interbody cages implanted between the lumbar vertebrae by evaluating the strength of the bone model and the spinal cage. Materials and methods: In this study, finite element analysis (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 various interbody cage designs, including honeycomb and rectilinear patterns with 50%, 70%, and 100% infill densities. The cage was made of polyether ether ketone (PEEK) and designed using Solidworks software. The interbody cage was inserted between L4-L5, identified from CT scans utilizing MF. The model was analyzed in MF to assess the strength of the interbody cage, with the results compared to mechanical properties values obtained by applying compression load to simulate spinal movements. Results: The results showed the best interbody cage design was the honeycomb pattern with 70% infill density because the honeycomb structure produced the lowest equivalent and maximum principal stress. Discussion: The findings indicate that when the yield and ultimate tensile strength of the material are higher than the equivalent and maximum principal stress, the risk of cage failure is lower. This is due to it having demonstrated the highest structural capability in comparison to the other cage designs. Consequently, it is imperative to consider that PEEK-based cages with higher infill density exhibit relatively lower stress production than those with lesser infill density. Conclusion: Choosing a mechanically compatible interbody cage design is crucial for achieving biomechanical success in spine surgery 2023 Article PeerReviewed text en http://eprints.uthm.edu.my/12387/1/J17847_2bb6b9dbd09feedc8bd464e64f9c59c0.pdf Zulkefli, Aiman Asiqin and Mazlan, Muhammad Hazli and Takano, Hiromitsu and Md Salleh, Nur Saliha and Jalil, Muhammad Hilmi (2023) Biomedical Analysis of Lateral Lumbar Interbody Fusion (LLIF) Cage for Lumbar Vertebrae. Series on Biomechanics. pp. 1-12.
institution Universiti Tun Hussein Onn Malaysia
building UTHM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tun Hussein Onn Malaysia
content_source UTHM Institutional Repository
url_provider http://eprints.uthm.edu.my/
language English
topic RD Surgery
spellingShingle RD Surgery
Zulkefli, Aiman Asiqin
Mazlan, Muhammad Hazli
Takano, Hiromitsu
Md Salleh, Nur Saliha
Jalil, Muhammad Hilmi
Biomedical Analysis of Lateral Lumbar Interbody Fusion (LLIF) Cage for Lumbar Vertebrae
description Objective: To develop the interbody cages implanted between the lumbar vertebrae by evaluating the strength of the bone model and the spinal cage. Materials and methods: In this study, finite element analysis (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 various interbody cage designs, including honeycomb and rectilinear patterns with 50%, 70%, and 100% infill densities. The cage was made of polyether ether ketone (PEEK) and designed using Solidworks software. The interbody cage was inserted between L4-L5, identified from CT scans utilizing MF. The model was analyzed in MF to assess the strength of the interbody cage, with the results compared to mechanical properties values obtained by applying compression load to simulate spinal movements. Results: The results showed the best interbody cage design was the honeycomb pattern with 70% infill density because the honeycomb structure produced the lowest equivalent and maximum principal stress. Discussion: The findings indicate that when the yield and ultimate tensile strength of the material are higher than the equivalent and maximum principal stress, the risk of cage failure is lower. This is due to it having demonstrated the highest structural capability in comparison to the other cage designs. Consequently, it is imperative to consider that PEEK-based cages with higher infill density exhibit relatively lower stress production than those with lesser infill density. Conclusion: Choosing a mechanically compatible interbody cage design is crucial for achieving biomechanical success in spine surgery
format Article
author Zulkefli, Aiman Asiqin
Mazlan, Muhammad Hazli
Takano, Hiromitsu
Md Salleh, Nur Saliha
Jalil, Muhammad Hilmi
author_facet Zulkefli, Aiman Asiqin
Mazlan, Muhammad Hazli
Takano, Hiromitsu
Md Salleh, Nur Saliha
Jalil, Muhammad Hilmi
author_sort Zulkefli, Aiman Asiqin
title Biomedical Analysis of Lateral Lumbar Interbody Fusion (LLIF) Cage for Lumbar Vertebrae
title_short Biomedical Analysis of Lateral Lumbar Interbody Fusion (LLIF) Cage for Lumbar Vertebrae
title_full Biomedical Analysis of Lateral Lumbar Interbody Fusion (LLIF) Cage for Lumbar Vertebrae
title_fullStr Biomedical Analysis of Lateral Lumbar Interbody Fusion (LLIF) Cage for Lumbar Vertebrae
title_full_unstemmed Biomedical Analysis of Lateral Lumbar Interbody Fusion (LLIF) Cage for Lumbar Vertebrae
title_sort biomedical analysis of lateral lumbar interbody fusion (llif) cage for lumbar vertebrae
publishDate 2023
url http://eprints.uthm.edu.my/12387/1/J17847_2bb6b9dbd09feedc8bd464e64f9c59c0.pdf
http://eprints.uthm.edu.my/12387/
_version_ 1825163108806557696
score 13.239859

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