A finite element model of artificial lumbar disc replacement / 中国组织工程研究
Chinese Journal of Tissue Engineering Research
;
(53)2007.
Artigo
em Chinês
| WPRIM
| ID: wpr-591240
ABSTRACT
BACKGROUND:
Some scholars have used finite element analysis to simulate spinal biodynamics. But there are few reports on finite element imitation of lumbar biodynamics system before and after artificial disc replacement.OBJECTIVE:
This study aimed to do finite element analysis by establishing new three dimensional finite element models of SB-Chaite Ⅲ lumbar disc replacement. DESIGN, TIME ANDSETTING:
The observational experiments were performed at the Laboratory of Orthopaedics of Xiangya Hospital of Central South University from December 2003 to August 2004. PARTICIPANT A healthy male volunteer served as simulation. His T12-S1 underwent continuous CT scanning. There were altogether 264 images with 2 mm in thickness each. Three-dimensional images were reconstructed every 15? in order to obtain the data for three-dimensional model.METHODS:
The CT images and human anatomical data were processed by 3DSMAX software to establish three-dimensional L4-5 model of normal Chinese males. MAIN OUTCOMEMEASURES:
It was transformed to finite element model after processed by SAP2000 software together with SB-Chaite Ⅲ disc prosthesis model.RESULTS:
The three-dimensional model and finite element model of lumbar spine were successfully established. The finite element model of SB-Chaite Ⅲ disc replacement in L4-5 spine was established. The total nodes were 2 542, including 1 924 Solid units, 592 Area units and 50 Link units.CONCLUSION:
The finite element model of artificial disc replacement can be established by CT scanning, digital processor and computer aided design.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Tissue Engineering Research
Ano de publicação:
2007
Tipo de documento:
Artigo
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