Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (4): 605-608.doi: 10.3969/j.issn.1673-8225.2012.04.008

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Plate pull-out strength of upper thoracic anterior titanium plate and anterior cervical titanium plate fixed system

Liu Hui-jiang1, Zhan Xin-li1, Xiao Zeng-ming1, Gu Rong-he1, Liu Yun1, Luo Ju-li1, Liang Dong-zhu2   

  1. 1Department of Orthopedics, First Affiliated Hospital of Guangxi Medical University, Nanning  530021, Guangxi Zhuang Autonomous Region, China; 2Biomechanical Laboratory of Southern Medical University, Guangzhou  510515, Guangdong Province, China
  • Received:2011-08-03 Revised:2011-10-24 Online:2012-01-22 Published:2014-04-04
  • Contact: Zhan Xin-li, Professor, Department of Orthopedics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China xl.zhandocter@yahoo.com.cn
  • About author:Liu Hui-jiang★, Master, Physician, Department of Orthopedics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China huijiangliuguke@163.com
  • Supported by:

    2011-08-03the National Natural Science Foundation of China, No. 30960386*; the Natural Science Foundation of Guangxi Zhuang Autonomous Region, No. 0832039*

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Abstract:

BACKGROUND: There is no dedicated upper thoracic anterior fixed system, the fixation devices deceloped by ourself has applied for a patent, which is still in the further research.
OBJECTIVE: To evaluate the pull-out strength of self-designed upper thoracic anterior titanium plate fixed system and Orion anterior cervical titanium plate fixed system and to explore whether the upper thoracic anterior titanium plate fixation is feasible.  METHODS: Intact T2-T4 specimens from 6 fresh corpses were randomly divided into two groups: group A with upper thoracic anterior titanium plate fixation and group B with Orion anterior cervical plate fixation. T3 vertebral body and T2/3, T3/4 disc tissue were resected, then taken the appropriate iliac bone in the same body implanted in the T3 vertebral bone defect, and each of their fixation were installed.The pull-out strength was tested in the biomechanical testing machine and analyzed statistically.
RESULTS AND CONCLUSION: The average pull-out strength of the group A was (1 005.11±252.78) N, and it was stronger than that of the group B (469.37±142.75) N, the difference was statistically significance (P < 0.05). The self-designed upper thoracic anterior titanium plate fixation device pull-out strength is superior to Orion anterior cervical titanium plate fixation device, which provided an experimental basis for later clinical application.

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