中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (4): 629-632.doi: 10.3969/j.issn.1673-8225.2011.04.014

• 骨与关节生物力学 bone and joint biomechanics • 上一篇    下一篇

骨锚置入先天性马蹄内翻足矫形固定胫前肌腱过程中的生物力学变化

陈  波，杜远立，李玉鹏，王  华，武  斌，茹  能，乐锦波   

  1. 三峡大学人民医院骨科，湖北省宜昌市  443000
  • 收稿日期:2010-09-05 修回日期:2010-10-10 出版日期:2011-01-22 发布日期:2011-01-22
  • 作者简介:陈波★，男，1971年生，湖北省随州市人，汉族，副主任医师，2009年华中科技大学同济医学院毕业，硕士，主要从事创伤和手外科研究。 chenbo71@sina.com
  • 基金资助:

    湖北省宜昌市2009卫生科技计划项目(A09301-14)，课题名称：骨锚在先天性马蹄内翻足矫形术中固定胫前肌腱的生物力学和临床研究。

Biomechanical changes in bone anchor fixation of tibial anterior tendon in orthopedic surgery of congenital clubfoot 

Chen Bo, Du Yuan-li, Li Yu-peng, Wang Hua, Wu Bin, Ru Neng, Le Jin-bo   

  1. Department of Orthopaedics, People’s Hospital of China Three Gorges University, Yichang  443000, Hubei Province, China
  • Received:2010-09-05 Revised:2010-10-10 Online:2011-01-22 Published:2011-01-22
  • About author:Chen Bo★, Master, Associate chief physician, Department of Orthopaedics, People’s Hospital of China Three Gorges University, Yichang 443000, Hubei Province, China chenbo71@sina.com
  • Supported by:

    Yichang Health Science and Technology Development Program of Hubei Province in 2009, No. A09301-14 

PDF

367

被引次数

2

摘要：

背景：先天性马蹄内翻足矫形术中胫前肌腱通常用钢丝固定，需二次手术抽出和可能发生感染，尝试应用骨锚来固定胫前肌腱。
目的：分析骨锚在先天性马蹄内翻足矫形术中固定胫前肌腱的生物力学特性。
方法：采用儿童截肢后的小腿，解剖出胫前肌腱和楔骨，用Mitek GII锚钉和No. 2 Ethibond缝线分别固定，所有的样本进行生物力学垂直拔出试验，直到失败。
结果与结论：骨锚固定楔骨的失败模式如下：10枚骨锚全部拔出，无缝线断裂，骨锚无损坏，平均最大拔出载荷137 N。缝线固定楔骨的失败模式如下：10根No. 2 Ethibond缝线全部断裂，平均最大拔出载荷为92 N。提示骨锚固定的生物力学性能优于经骨的缝线固定，达到先天性马蹄内翻足矫形术中固定胫前肌腱的强度。

关键词: 先天性马蹄内翻足, 胫前肌腱, 生物力学, 骨锚, 载荷

Abstract:

BACKGROUND: In orthopedic surgery for congenital clubfoot, the tibial anterior tendon is commonly reattached to the cuneiform bone with wire, which should be pulled out by second surgery and might induce infection. Bone anchor has been attempted to fix tibial anterior tendon.
OBJECTIVE: To explore the biomechanical properties of bone anchor to fix tibial anterior tendon in orthopedic surgery of congenital clubfoot.
METHODS: The anterior tibial tendon and the cuneiform bone were dissected from the amputated children's leg, which were fixed with a Mitek GII bone anchor or No. 2 Ethibond suture. All samples were subjected to biomechanical vertical pull testing until failure.
RESULTS AND CONCLUSION: In the bone anchor fixation failure mode: all 10 bone anchors were pulled out without suture broken or anchor damaged. The average maximum pullout load was 137 N. In The suture fixation failure mode: 10 No. 2 Ethibond sutures all broke, and the average maximum pullout load was 92 N. Biomechanical properties of bone anchor are better than suture, which achieve the strength to fix the anterior tibial tendon in orthopedic surgery of congenital clubfoot.

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