中国临床解剖学杂志 ›› 2015, Vol. 33 ›› Issue (4): 461-463.doi: 10.13418/j.issn.1001-165x.2015.04.019

• 临床生物力学 • 上一篇    下一篇

不同内固定方法对胫腓连结固定效果的实验研究

甘煜东1, 丁晶1, 侯春林2, 黄志伟1, 徐永清1   

  1. 1.成都军区昆明总医院附属骨科医院,  昆明   650032;    2.第二军医大学长征医院骨科,  上海   200003
  • 收稿日期:2014-09-22 出版日期:2015-07-25 发布日期:2015-08-14
  • 通讯作者: 徐永清,主任医师,教授,E-mail:xuyongqingkm@163.net
  • 作者简介:甘煜东(1982-),男,山东青岛人,主治医师,博士后,主要从事关节外科方面的研究,Tel:15912466066,E-mail:gasbzh-1981@163.com。

The experimental research on effectiveness of different internal fixation for tibiofibular connection

GAN Yu-dong1,DING Jing1,HOU Chun-lin2,  HUANG Zhi-wei1, XU Yong-qing1   

  1. 1.The Affliated Orthopedics Hospital of Kunming General Hospital of Chengdu Military Region, Kunming 650032, China;  2.Department of Orthopedics, Changzhen Hospital, The Second Military Medical University, Shanghai 200003, China
  • Received:2014-09-22 Online:2015-07-25 Published:2015-08-14

摘要:

目的 探讨胫腓连结的活动度及不同内固定方法对胫腓连结效果的影响。  方法 新鲜冷藏的成人小腿标本8侧,常温下解冻,自踝关节离断,剔除皮肤、肌肉等软组织,保留胫腓关节、胫腓连结和骨间膜的完整,置于SWD10万能材料实验机上,测量胫腓连结的正常活动度,完全切断胫腓连结,分别用普通螺丝钉、拉力螺丝钉和“U”形钉固定,测量固定后的活动度。  结果 胫腓连结正常的生理活动度为前→后(1.83±0.38) mm、后→前(1.89±0.38) mm、外→内 (1.42±0.34) mm、内→外(1.36±0.65) mm。胫腓连结用普通螺丝钉和拉力螺钉固定后,外踝的活动明显受限,虽然拉力螺钉固定更牢,但二者相差不显著,与正常比较相差非常显著;用“U”形钉固定后,活动度与正常比较相差不显著。  结论 胫腓连结是一个具有一定活动度的弹性结构,用螺丝钉固定后活动度明显变小,使用胫腓连结钩或“U”形钉进行弹性固定可保留胫腓连结的生理活动。

关键词:  , 胫腓连结, 活动度, 内固定, 生物力学

Abstract:

Objective  To investigate activity range after the tibiofibular connection and the influence of different internal fixation on tibiofibular connection. Methods 8 fresh frozen adult leg specimens underwent room temperature thawing, amputation at the ankle and removal of skin, muscle and other soft tissue with the upper and lower tibiofibular joints and the interosseous membrane being kept intact. The processed specimens were then mounted on to a SWD10 universal material experiment machine to measure the physiological activity of tibiofibular activity. In the second step, the fibiotibial connection were completely severed and reestablished with ordinary screws, lag screws, "U" -shaped nail, after which the activity was measured. Results The normal physiological activity of tibiofibular connection is (1.83±0.38) mm in the anterior-to-posterior direction, (1.89±0.38) mm in a posterior-to-anterior direction, (1.42±0.34) mm in a lateral-to-medial direction, and (1.36±0.65) mm in a medial-to-lateral direction. After fixation with ordinary screws and lag screws, the activities of the external ankle was significantly limited. Though the lag screws are firmer in fixation, there was no significant difference in terms of activity when compared to that of normal screws fixation. With "U" -shaped nail fixation, no significant compromise in activity was noticed when compared with that of physiological connection. Conclusions  Tibiofibular connection if is an elastic structure of a certain activity and activity will decrease significantly after internal fixation with screws. Using the tibiofibular link hook or "U" -shaped nail for elastic fixation may retain the physiological activities.

Key words: Tibial phil link, Activity, Internal fixation, Biomechanics