Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (34): 5418-5422.doi: 10.3969/j.issn.2095-4344.2015.34.002

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Effect of bone cement amount on adjacent vertebral endplate during percutaneous kyphoplasty: a finite element analysis

Zhang Dang-feng1, Ma Wei1, Ge Zhao-hui2, Zhang Fei3, Zeng Si-xiang1   

  1. 1Department of Orthopedics, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China; 2Department of Spine Surgery, Affiliated Hospital of Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China; 3Department of Orthopedics, the Third Affiliated Hospital of Inner Mongolia Medical University, Baotou 014000, Inner Mongolia Autonomous Region, China
  • Online:2015-08-20 Published:2015-08-20
  • Contact: Ma Wei, M.D., Chief physician, Department of Orthopedics, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
  • About author:Zhang Dang-feng, Studying for doctorate, Attending physician, Department of Orthopedics, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, Shaanxi Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 30960391 

Abstract:

BACKGROUND: Recent studies have proved the presence of adjacent vertebral fractures after percutaneous kyphoplasty, suggesting that cement leakage may be an important reason.
OBJECTIVE: To investigate the effect of bone cement amount during percutaneous kyphoplasty on adjacent vertebral endplate using finite element analysis.
METHODS: Three-dimensional finite element pathological model of Osteoporotic vertebral compression fracture was established using finite element analysis, and 10%, 20% and 30% volume of bone cement were filled, respectively. Then the adjacent vertebral endplate stress under the axial compression, anteflexion and rear protraction were analyzed.
RESULTS AND CONCLUSION: Compared with that before operation, the adjacent vertebral endplate stress increased with the increase in filled bone cement volume, suggesting that the increased amount of bone cement will lead to the increasing of adjacent vertebral re-fractures.

 中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

Key words: Osteoporotic Fractures, Vertebroplasty, Computer Simulation

CLC Number: