The Foundation of a Finite Element Model for Cleft Palate and Analysis of Biomechanical Properties

Author(s):  
Yixi Wen ◽  
Yang Li
2009 ◽  
Vol 72 (2) ◽  
pp. 139-145 ◽  
Author(s):  
Luis Alberto Carvalho ◽  
Marcelo Prado ◽  
Rodivaldo H. Cunha ◽  
Alvaro Costa Neto ◽  
Augusto Paranhos Jr ◽  
...  

2003 ◽  
Vol 1240 ◽  
pp. 1145-1149 ◽  
Author(s):  
Milos Vohradnik ◽  
Karel Dedouch ◽  
Jan Vokral ◽  
Jan G Svec

Author(s):  
Yu Hui ◽  
Kai-Rui Zhao ◽  
Jun-Sheng Wu ◽  
Bin Yu ◽  
Chen Zhang ◽  
...  

Recent research has shown that lumbar disease has become common in China. Since the structure of the lumbar spine is extremely complex, a finite element analysis method was used to perform biomechanical simulation and analysis of stress and strain on the L3–L4 lumbar segment to provide both a scientific and theoretical basis for clinical diagnosis and medical research. The MC volume-rendering 3D reconstruction method was the first step to accurately constructing the finite element model of the L3–L4 lumbar sacral segment, which was simulated prior to the addition of the ligaments, fibrous ring, and other major spinal tissue. The finite element model network was classified and the material properties of the corresponding parts were described. According to the normal model, careful simulation and deformation were performed, in addition to intervertebral disc degeneration in various cases. We have provided a detailed and professional analysis of the biomechanical properties, providing a powerful biomechanical basis for the diagnosis of intervertebral disc bulge and degeneration.


Author(s):  
Laura Belenguer Querol ◽  
Philippe Büchler ◽  
Daniel Rueckert ◽  
Lutz P. Nolte ◽  
Miguel Á. González Ballester

Author(s):  
Yu Hui ◽  
Jun-Sheng Wu ◽  
Bin Yu ◽  
Chen Zhang ◽  
Jing Du

In this paper, combined with physiological anatomy knowledge, the complete finite element model of L3–L4 lumbosacral segment of human lumbar was established by using the 3D graphic of human spine L3–L4 segment, which is obtained by image diagnosis technique (CT scan). This model includes the sections of the bones, the intervertebral disc and the anterior ligament, the posterior ligament, the ligamentum flavum, the fibrous ring and other major spine attached soft tissue. Then the finite element model meshing and the material properties of the corresponding part setting were done on the constructed model, and different loads and boundary conditions were imposed to simulate the displacement and stress and strain nephogram of the normal model and intervertebral disc herniation, senile degeneration and other models in different movement states. And the effectiveness of model data is verified by analyzing its biomechanical properties. The biomechanical properties of the spine obtained by the finite element method can be used to provide biomechanical basis for the diagnosis and treatment of intervertebral disc herniation and degeneration.


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