研究生: |
Van-Hung Nguyen Van-Hung Nguyen |
---|---|
論文名稱: |
人體胸腰椎個體化有限元素分析於不同骨骼材料建置之生物力學研究 Biomechanical Investigation of Human Thoracolumbar Spine with Various Material Assignment Approaches Using Patient-Specific Finite Element Analysis |
指導教授: |
徐慶琪
Ching-Chi Hsu |
口試委員: |
趙振綱
Ching-Kong Chao 林鼎勝 Ting-Sheng Lin |
學位類別: |
碩士 Master |
系所名稱: |
應用科技學院 - 應用科技研究所 Graduate Institute of Applied Science and Technology |
論文出版年: | 2022 |
畢業學年度: | 110 |
語文別: | 英文 |
論文頁數: | 111 |
中文關鍵詞: | Thoracolumbar spine 、medical image processing 、computed tomography 、subject-specific finite element models 、material assignment approaches |
外文關鍵詞: | Thoracolumbar spine, medical image processing, computed tomography, subject-specific finite element models, material assignment approaches |
相關次數: | 點閱:610 下載:0 |
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Thoracolumbar spine is the back bone of human body characterized by sophisticated material compositions with the main functions that are to support human weight as well as carry out basic human movements. Finite element analysis (FEA) with easily modified loading and boundary conditions had been widely used to develop human spine model. However, idea linear material model and short vertebral segment were considered in past studies. These assumption and simplification might affect the prediction and applicability of their numerical models. Thus, the aim of this study is to investigate human thoracolumbar spine with various material assignment approaches using patient-specific FEA.
In this study, one subject-specific thoracolumbar spinal model with various material assignment approaches will be constructed using different computational techniques and software (Amira, Geomagic Freeform, Geomagic Wrap and ANSYS Workbench). Three thoracolumbar spinal models with different material properties will be simulated under the same loading and boundary conditions. The following biomechanical performances were analyzed and discussed including the range of motion, intersegmental rotation, intervertebral disc stress, and vertebral bone stress.
The thoracolumbar spine models with various material assignment approaches can be successfully developed using the numerical techniques proposed by this study. The various material assignment approaches affected the intervertebral disc stress, vertebral bone stress, and intersegmental rotation of the spine models. The methodology and findings presented in this study can offer engineers as well as surgeons valuable knowledge on patient-specific thoracolumbar spine modeling and spine biomechanics.
Thoracolumbar spine is the back bone of human body characterized by sophisticated material compositions with the main functions that are to support human weight as well as carry out basic human movements. Finite element analysis (FEA) with easily modified loading and boundary conditions had been widely used to develop human spine model. However, idea linear material model and short vertebral segment were considered in past studies. These assumption and simplification might affect the prediction and applicability of their numerical models. Thus, the aim of this study is to investigate human thoracolumbar spine with various material assignment approaches using patient-specific FEA.
In this study, one subject-specific thoracolumbar spinal model with various material assignment approaches will be constructed using different computational techniques and software (Amira, Geomagic Freeform, Geomagic Wrap and ANSYS Workbench). Three thoracolumbar spinal models with different material properties will be simulated under the same loading and boundary conditions. The following biomechanical performances were analyzed and discussed including the range of motion, intersegmental rotation, intervertebral disc stress, and vertebral bone stress.
The thoracolumbar spine models with various material assignment approaches can be successfully developed using the numerical techniques proposed by this study. The various material assignment approaches affected the intervertebral disc stress, vertebral bone stress, and intersegmental rotation of the spine models. The methodology and findings presented in this study can offer engineers as well as surgeons valuable knowledge on patient-specific thoracolumbar spine modeling and spine biomechanics.
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