中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (34): 5418-5422.doi: 10.3969/j.issn.2095-4344.2015.34.002

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials • 上一篇    下一篇

后凸成形中骨水泥量对相邻椎体终板影响的有限元分析

张党锋1,马 巍1,戈朝晖2,张 飞3,曾思翔1   

  1. 1西安交通大学第一附属医院骨科,陕西省西安市 710061;宁夏医科大学附属医院脊柱外科,宁夏回族自治区银川市 750004; 3内蒙古医科大学第三附属医院骨科,内蒙古自治区包头市 014000)
  • 出版日期:2015-08-20 发布日期:2015-08-20
  • 通讯作者: 马巍,博士,主任医师,西安交通大学第一附属医院骨科,陕西省西安市 710061
  • 作者简介:张党锋,男,1982年生,陕西省周至县人,汉族,西安交通大学在读博士,主治医师,主要从事脊柱外科及关节外科的研究。
  • 基金资助:

    国家自然科学基金项目(30960391)

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 

摘要:

背景:最近研究表明经皮椎体后凸成形后存在相邻椎体骨折的问题,推测骨水泥泄露可能是其中的重要原因。
目的:探讨经皮椎体后凸成形中骨水泥量对相邻椎体终板的生物力学影响。
方法:建立骨质疏松性椎体压缩骨折病理三维有限元模型,分别在骨折椎体内填充10%,20%和30%椎体容积的骨水泥,分析轴向压缩、前屈和后伸三种情况下相邻椎体终板应力的变化情况。
结果与结论:与填充前相比,骨水泥容积按10%,20%和30%填充后,相邻椎体终板各种情况下的应力均增加,且随着骨水泥填充容积增加而增加。说明经皮椎体后凸成形中骨水泥用量增加,会导致相邻椎体骨折增加的概率。

 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

关键词: 生物材料, 骨生物材料, 骨质疏松症, 经皮椎体后凸成形, 骨水泥, 骨折, 相邻椎体, 终板, 应力, 有限元分析, 国家自然科学基金

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

中图分类号: