中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (17): 3109-3112.doi: 10.3969/j.issn.1673-8225.2011.17.017

• 骨科植入物 orthopedic implant • 上一篇    下一篇

佩带膝外翻支具膝骨关节炎患者膝关节的生物力学变化

张  旻，江  澜   

  1. 上海交通大学附属上海市第六人民医院康复医学科门诊部，上海市    200233
  • 收稿日期:2010-10-25 修回日期:2010-12-16 出版日期:2011-04-23 发布日期:2011-04-23
  • 通讯作者: 江澜，主管技师，上海市第六人民医院康复医学科，上海市 200233
  • 作者简介:张旻★，男，1982年生，湖南省长沙市人，汉族，2010年University of Salford毕业，硕士，技师，主要从事生物力学研究。 zm_602@sina.com

Biomechanical changes of the knee with the valgus bracing in people with medial knee osteoarthritis

Zhang Min, Jiang Lan   

  1. Division of Outpatient, Department of Rehabilitation Medicine, Six People’s Hospital of Shanghai Jiao Tong University, Shanghai  200233, China
  • Received:2010-10-25 Revised:2010-12-16 Online:2011-04-23 Published:2011-04-23
  • Contact: Jiang Lan, Technician-in-charge, Division of Outpatient, Department of Rehabilitation Medicine, Six People’s Hospital of Shanghai Jiao Tong University, Shanghai 200233, China
  • About author:Zhang Min★, Master, Technician, Division of Outpatient, Department of Rehabilitation Medicine, Six People’s Hospital of Shanghai Jiao Tong University, Shanghai 200233, China zm_602@sina.com

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522

被引次数

22

摘要：

背景：佩带膝关节外翻矫形器已被证明是一种可以有效减轻内侧间室膝骨关节炎患者疼痛的方法，但是佩带矫形器后的膝关节所产生的运动学以及动力学变化至今尚不明确。
目的：观察内侧间室膝骨关节炎患者佩带膝关节矫形器前后的膝关节运动学以及动力学参数变化，便于为将来设计新型膝关节矫形器提供依据。
方法：纳入20例内侧间室膝骨关节炎患者，分别通过三维步态分析系统和测力板对其在佩带膝外翻矫形器及不佩带膝外翻矫形器两种情况步行中的运动学及动力学参数进行采集，并进行对比。
结果与结论：相比未佩带膝关节外翻支具，佩带膝关节外翻支具后患者在步行过程中膝关节内收力矩明显减小，与此同时膝关节内翻角度明显减小，外翻角度明显增加(P均< 0.05)，膝关节在步行过程中的最大屈曲角度以及时间空间参数差异无显著性意义。提示膝关节外翻矫形器可有效地通过增加内侧间室膝骨关节炎患者膝关节在步行过程中的外翻角度减小内翻角度从而降低膝内侧间室所承受的压力，与此同时纠正膝关节非正常对线。

关键词: 步态分析, 膝关节支具, 内侧间室膝骨关节炎, 膝内收力矩, 膝关节, 生物力学

Abstract:

BACKGROUND: Unloading valgus knee brace has been proved to be a very effective method which can help patients in medial knee osteoarthritis, but the kinematic and kinetic changes at knee joint after taking knee brace was not clear.
OBJECTIVE: To investigate the kinematics and kinetics changes of the medial knee osteoarthritis at knee during walking with and without unloading valgus knee brace which is benefit for designing new type of knee brace in the future.
METHODS: Totally 20 patients with medial knee osteoarthritis were included in this test kinematics changes were conducted with three dimensional gait analysis system and the kinetics changes were collected by the force platforms for medial knee osteoarthritis subjects with or without valgus knee brace.
RESULTS AND CONCLUSION: Patients with valgus knee brace showed smaller knee adduction moment during walking when compared to the no brace condition and an increased knee valgus and decreased knee varus angles were found at same time(P < 0.05), there were no significant changes in temporal-spatial parameters and peak knee flexion degrees during walking. Using unloading valgus knee brace was an effective method to reduce the loading in the medial compartment by increasing knee valgus degrees and decreasing knee varus degrees during walking and the abnormal mechanical alignment of the knee was corrected at the same time.

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