中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (26): 4219-4223.doi: 10.3969/j.issn.2095-4344.2014.26.022

• 脊柱损伤基础实验 basic experiments of spinal injury • 上一篇    下一篇

PUMCⅡd1型青少年特发性脊柱侧凸三维有限元模型的建立

黄盛佳1,2,霍洪军2,杨学军2,邢文华2,辛大奇2,李  峰2   

  1. 1内蒙古医科大学,内蒙古自治区呼和浩特市  010110;2内蒙古医科大学第二附属医院脊柱外科,内蒙古自治区呼和浩特市  010030
  • 出版日期:2014-06-25 发布日期:2014-06-25
  • 通讯作者: 霍洪军,主任医师,教授,研究生导师,内蒙古医科大学第二附属医院脊柱外科,内蒙古自治区呼和浩特市 010030
  • 作者简介:黄盛佳,男,1986年生,广东省汕头市人,汉族,内蒙古医科大学在读硕士,主要从事脊柱生物力学方面的研究。
  • 基金资助:

    国家自然科学基金项目(81160216),课题名称“数字化胸椎椎弓根-肋骨复合体生物力学分析及应用于脊柱畸形矫形术前规划实验研究”

Establishing a three-dimensional finite element model of PUMCIId1 adolescent idiopathic scoliosis

Huang Sheng-jia 1, 2, Huo Hong-jun2, Yang Xue-jun2, Xing Wen-hua2, Xin Da-qi2, Li Feng2   

  1. 1 Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China; 2 Department of Spine Surgery, Second Affiliated Hospital, Inner Mongolia Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • Online:2014-06-25 Published:2014-06-25
  • Contact: Huo Hong-jun, Chief physician, Professor, Post-graduate supervisor, Department of Spine Surgery, Second Affiliated Hospital, Inner Mongolia Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • About author:Huang Sheng-jia, Studying for master’s degree, Inner Mongolia Medical University, Hohhot 010110, Inner Mongolia Autonomous Region, China; Department of Spine Surgery, Second Affiliated Hospital, Inner Mongolia Medical University, Hohhot 010030, Inner Mongolia Autonomous Region, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81160216

摘要:

背景:建立高质量的有限元模型是进行生物力学分析研究的重要基础,完整的青少年特发性脊柱侧凸三维有限元模型报道甚少。
目的:建立PUMCⅡd1型青少年特发性脊柱侧凸三维有限元模型,为特发性脊柱侧凸的生物力学分析提供有效的数字化平台。
方法:采集1 例14岁PUMCⅡd1型特发性脊柱侧凸女性志愿者从T1至骶尾骨的CT 断层图像,将CT数据导入Mimics 16.0医学三维重建软件中,建立包括胸廓结构的完整脊柱侧凸三维几何模型。再将几何模型以点云格式导入Geomagic Studio 11.0软件中,对三维模型进行光滑、打磨、去噪等一系列图像处理,生成特发性脊柱侧凸三维有限元模型。最后导入ANSYS 14.0有限元分析软件中添加韧带、设置单元类型和定义材料属性,生成完整的特发性脊柱侧凸三维有限元模型。
结果与结论:成功建立了完整的PUMCⅡd1型特发性脊柱侧凸三维有限元模型,包括四面体单元522 887个和杆单元730个,共计523 617个单元,159 008个节点。试验建立了外形逼真的PUMCⅡd1型特发性脊柱侧凸三维有限元模型,为进一步的生物力学分析提供了可靠的数字化模型。


中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程


全文链接:

关键词: 植入物, 脊柱植入物, 数字化骨科, 青少年特发性脊柱侧凸, 生物力学, 有限元分析, 国家自然科学基金

Abstract:

BACKGROUND: Establishment of high-quality finite element model is an important basis of biomechanical analysis. The reports on three-dimensional finite element model of complete adolescent idiopathic scoliosis are less.
OBJECTIVE: To set up three-dimensional finite element model of PUMCIId1 adolescent idiopathic scoliosis for building ideal digitization platform for further biomechanical study.
METHODS: A 14-year-old female patient with PUMCIId1 adolescent idiopathic scoliosis was included as volunteer for the current study. CT images obtained from CT transverse scanning from T1 to sacrococcyx were imported into Mimics 16.0 software to form qualified three-dimensional geometric model, including thoracic cage, which was further delivered to Geomagic Studio 11.0 software to build three-dimensional finite element model by a series of modules and optimization of cleaning. The geometric model was imported to ANSYS 14.0 software to build complete three-dimensional finite element adolescent idiopathic scoliosis model by adding ligaments, setting unit type, and defining material properties. 
RESULTS AND CONCLUSION: A complete three-dimensional finite element model of PUMCIId1 adolescent idiopathic scoliosis was built successfully, consisting of 522 887 tetrahedron elements and 730 rod elements, a total of 523 617 units and 159 008 nodes. Three-dimensional finite element model of PUMCIId1 adolescent idiopathic scoliosis was lifelike, and can be used as the reliable digital model for further biomechanical analysis.


中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程


全文链接:

Key words: scoliosis, adolescent, biomechanics, finite element analysis

中图分类号: