Constructing a three-dimensional finite element model of multiple compression fractures of the thoracolumbar spine based on information from normal human
10.3969/j.issn.1673-8225.2009.52.008
- VernacularTitle:基于正常人体资料建立胸腰椎多椎体压缩性骨折三维有限元模型
- Author:
Hongyu JIA
;
Xiaolin LI
;
Zhipeng Lü
- Publication Type:Journal Article
- From:
Chinese Journal of Tissue Engineering Research
2009;13(52):10247-10250
- CountryChina
- Language:Chinese
-
Abstract:
The 210-layer consecutive CT Dicom format image of a healthy human body thoracolumbar was directly reading into the Mimics,and defining bone organization threshold,withdrawing each outline,partitioning each edge of layer picture,selectively editing and repairing by hole processing.After the redundancy data was cleaned,the thoracolumbar 3-D finite element geometry model was acquired.Then area mesh could be introduced into Ansys software directly to compartmentalize mesh body,and then transferred the body mesh to mimics to assignment on the basis of CT values,then add the ligaments and joint-bindings to perfect the 3D finite element model in Ansys.Then bound the lower of L_1 and impose displacement-load in the upper edge of T_(12).The 3D finite element model was reconstructed using CT images from a patient of T_(12) and L_1 vertebral compression fractures.After that,a realistic appearance and calculation accuracy 3-D bone finite element model of thoracolumbar was established.The results showed that reconstructing a three-dimensional finite element model of thoracolumbar spine compression fractures based on fracture mechanism by information from normal human is scientific and effective.
