中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (52): 9734-9737.doi: 10.3969/j.issn.1673-8225.2011.52.010

• 数字化骨科 digital orthopedics • 上一篇    下一篇

单边多平面可调式骨外固定器的设计及生物力学特点

沈录峰1，李振肃2，董谢平3，吴小辉1，王锦程1   

  1. 1江西省人民医院正骨科，江西省南昌市  334000
    2枣庄市市中区人民医院骨科，山东省枣庄市 277000
    3江西省人民医院骨二科，江西省南昌市  334000
  • 收稿日期:2011-06-22 修回日期:2011-11-25 出版日期:2011-12-24 发布日期:2011-12-24
  • 通讯作者: 董谢平，主任医师，硕士生导师，江西省人民医院骨二科，江西省南昌市 330006 dongxieping@medmail.com.cn
  • 作者简介:沈录峰★，男，1981年生，江西省上饶市人，汉族，2009年江西中医学院毕业，硕士，医师，主要从事骨伤科的研究。 shenlufeng2007@yahoo.cn
  • 基金资助:

    国家“十一五”科技支撑项目(2008BAI68B06)，课题名称：极端气候条件下创伤疾病的发生规律及防治研究。江西省卫生厅中医药项目(04B15)，课题名称：单边多平面可调式骨外固定器的研究应用。

Design and biomechanical characteristics of adjustable multi-plane unilateral external fixator

Shen Lu-feng1, Li Zhen-su2, Dong Xie-ping3, Wu Xiao-hui1, Wang Jin-cheng1   

  1. 1Department of Orthopedics Traumatology, People’s Hospital of Jiangxi Province, Nanchang  334000, Jiangxi Province, China
    2Department of Orthopedics, Zaozhuang City People’s Hospital in District, Zaozhuang  277000, Shandong Province, China
    3Second Department of Orthopedics, People’s Hospital of Jiangxi Province, Nanchang  334000, Jiangxi Province, China
  • Received:2011-06-22 Revised:2011-11-25 Online:2011-12-24 Published:2011-12-24
  • Contact: Dong Xie-ping, Chief physician, Master’s supervisor, Second Department of Orthopedics, People’s Hospital of Jiangxi Province, Nanchang 334000, Jiangxi Province, China dongxieping@medmail.com.cn
  • About author:Shen Lu-feng★, Master, Physician, Department of Orthopedics Traumatology, People’s Hospital of Jiangxi Province, Nanchang 334000, Jiangxi Province, China shenlufeng2007@yahoo.cn
  • Supported by:

    National “Eleventh Five-Year” Science and Technology Support Project, No. 2008BAI68B06*; Traditional Chinese Medicine Project of Jiangxi Province Health Department, No. 04B15*

PDF

604

被引次数

6

摘要：

背景：对骨折患者行损伤控制性复位固定后待条件改善再作二次复位固定时，需另寻合适穿钉点重新固定，或须配置繁杂的组件方能原钉位调整固定。
目的：设计一种可以在非正常医疗条件下对四肢开放粉碎性骨折进行损伤控制性固定并能实现无创性二次复位和固定的单边多平面可调式骨外固定器，并对其进行生物力学试验。
方法：成年大猪股骨标本24具，制作成粉碎骨折模型12个，分为安装自制单边多平面可调式骨外固定器的实验组和安装AO管状外固定器的对照组，分别从轴向、剪切、旋转3种状态下进行生物力学检测。
结果与结论：实验组和对照组在抗压力、抗剪切、抗旋转方面差异无显著性意义。单边多平面可调式骨外固定器能在伤肢1/3周径范围内任意安装固定钉进行临时复位固定，再次复位时不需重新置钉即可利用原组件重新获得牢固固定。

关键词: 外固定器, 骨折, 设计, 生物力学, 置钉

Abstract:

BACKGROUND: Fracture patients after treated with damage control fixation, when needed a secondary fixation under conditions improved, another appropriate nail point for re-fixation is necessary, or complicated components is configured before fixation to adjust the original nail position.
OBJECTIVE: To design a adjustable multi-plane unilateral external fixation device for opening extremities comminuted fracture fixation and secondary non-invasive reduction and fixation under abnormal medical conditions, and to detect biomechanics of the device.
METHODS: Totally 24 femur specimens of the adult large pigs were prepared to construct 12 comminuted fracture models, then divided into experimental group with self-installing adjustable multi-plane unilateral external fixation and control group with installation of AO external fixation. Biomechanical testing was done separately in axial, shear and rotary conditions.
RESULTS AND CONCLUSION: There were no significant difference of anti-stress, anti-bending and anti-rotation in the experimental and control groups. The adjustable multi-plane unilateral external fixation can install nail arbitrary for temporary reduction and fixation within 1/3 perimeter of the injured limb. When secondary fixation, original components can fix firmly without re-set screw.

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