Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (22): 3996-4000.doi: 10.3969/j.issn.1673-8225.2012.22.002

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Establishing three-dimensional finite element model of the rib vertebral unit of the middle and

Zhao Yan1,2, Jiang Jian-ming1, Li Xiao-he3, Huo Hong-jun2, Zuo Yuan2, Xiao Yu-long2, Yang Xue-jun2　   

  1. 1Department of Spinal Surgery, Nanfang Hospital of Southern Medical University, Guangzhou  510515, Guangdong Province, China; 2Department of Spinal Surgery, the Second Affiliated Hospital of Inner Mongolia Medical College, Hohhot  010030, Inner Mongolia Autonomous Region, China; 3Department of Anatomy, School of Basic Medicine, Inner Mongolia Medical College, Hohhot  010059, Inner Mongolia Autonomous Region, China
  • Received:2012-02-02 Revised:2012-03-29 Online:2012-05-27 Published:2012-05-27
  • Contact: Jiang Jian-ming. Professor, Chief physician, Doctoral supervisor, Department of Spinal Surgery, Nanfang Hospital of Southern Medical University, Guangzhou 510515, Guangdong Province, China jjm19991999@sohu.com
  • About author:Zhao Yan☆, Studying for doctorate, Attending physician, Department of Spinal Surgery, Nanfang Hospital of Southern Medical University, Guangzhou 510515, Guangdong Province, China; Department of Spinal Surgery, the Second Affiliated Hospital of Inner Mongolia Medical College, Hohhot 010030, Inner Mongolia Autonomous Region, China nmgzy4568@126.com

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Abstract:

BACKGROUND: It has the great significance to establish the finite element model of the rib vertebral unit of the middle and lower thoracic vertebra for more mechanical analysis.
OBJECTIVE: To establish the three-dimensional finite element model of the rib vertebral unit of the middle and lower thoracic vertebra through the CT scanning combined with reverse engineering software.
METHODS: One case without disorders of spinal and osteoporosis was selected from the Video Branch in the Second Affiliated Hospital of Inner Mongolia Medical College. It was used to establish the human integrity three-dimensional finite element model of the rib vertebral unit of the middle and lower thoracic vertebral and intervertebral discs. The data were extracted directly from CT image by the means of the medical image processing software Mimics, and the model was modified in the visual interface by the means of platform of reverse engineering technology Geomagic. 
RESULTS AND CONCLUSION: The three-dimensional reconstruction of the rib vertebral unit of the middle and lower thoracic vertebral of human was performed through the reverse engineering software including Mimics and Geomagic, and combined with the technology of CT scan. This way reproduced the characters of the appearance and anatomy accurately, and achieved fine distinguish of the internal vertebral structure. There were 132 649 tetrahedral elements in every rib vertebral unit of the middle and lower thoracic vertebra. It suggests that this method can improve the efficiency and maneuverability of the modeling, and can successfully establish the finite element model conforming to the experimental requirements.

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