中国组织工程研究

中国组织工程研究 ›› 2010, Vol. 14 ›› Issue (4): 757-760.doi: 10.3969/j.issn.1673-8225.2010.04.044

• 骨与关节临床实践 clinical practice of the bone and joint • 上一篇    

全髋置换对膝关节运动状态的影响

姜海波1，葛世荣2，刘  芬3，罗  勇2   

  1. 1徐州师范大学机电学院，江苏省徐州市  221116；2中国矿业大学材料学院，江苏省徐州市  221116；3徐州市中心医院，江苏省徐州市  221008
  • 出版日期:2010-01-22 发布日期:2010-01-22
  • 作者简介:姜海波☆，男，1977年生，黑龙江省哈尔滨市人，汉族，2008年中国矿业大学毕业，博士，讲师，主要从事生物力学及仿生机械的研究。
  • 基金资助:

    国家自然科学基金资助项目(50535050)*；江苏省高校自然科学基金面上项目(09KJD 460005)*；徐州师范大学自然科学基金资助项目(08XLR13)*

Effects of total hip replacement on knee joint motion

Jiang Hai-bo1, Ge Shi-rong2, Liu Fen3, Luo Yong2   

  1. 1 School of Mechanic and Electrical Engineering, Xuzhou Normal University, Xuzhou  221116, Jiangsu Province, China; 2 School of Material Science and Engineering, China University of Mining and Technology, Xuzhou  221116, Jiangsu Province, China; 3 Emergency Department, Xuzhou Central Hospital, Xuzhou  221008, Jiangsu Province, China
  • Online:2010-01-22 Published:2010-01-22
  • About author:Jiang Hai-bo☆, Doctor, Lecturer, School of Mechanic and Electrical Engineering, Xuzhou Normal University, Xuzhou 221116, Jiangsu Province, China jianghaibo@xznu.edu.cn
  • Supported by:

    the National Natural Science Foundation of China, No. 50535050*; General Program of Natural Science Foundation for Colleges and Universities in Jiangsu Province, No. 09KJD460005*; the Natural Science Foundation of Xuzhou Normal University, No. 08XLR13*

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摘要：

背景：处在不同运动状态的人体下肢关节系统，其力学特性和关节变形量具有较大的差别。全髋置换是目前解决髋关节严重疾病的最终方法。明确置换前后人体下肢系统，特别是膝关节对置换的响应对于患者的康复训练具有积极意义。
目的：通过对健康者和行全髋置换后19个月的患者，在相同的测试环境和测试方法下进行数据采集，对比分析髋关节置换对膝关节在运动中关节变形量的影响。
方法：采用NDI公司的动态捕捉系统对行全髋术后19个月的患者进行测量，同时与患者身体状况相似的健康志愿者采用相同的测量仪器和测量方法进行实验。测量内容包括步长，步频，关节转角和关节位移曲线，并根据测量数据计算各关节的速度和加速度。
结果与结论：由于髋关节置换对患者的自然关节状态进行了破坏，虽然置换后的步态没有太大的差别，但是通过实验数据可以发现，膝关节的变化量比正常状态下要大，说明人体自身进行了调节，通过增大膝关节的负荷，增加变形量来弥补由于髋关节手术所带来的损伤。

关键词: 动态捕捉, 髋关节置换, 膝关节, 关节变形量, 髋关节假体

Abstract:

BACKGROUND: Human lower limb system under different motion statuses exhibits great difference in terms of kinetic characteristics and joint deformation magnitude. Total hip replacement has been shown to be the best method to solve the severe illness of hip joints today. A good understanding of the responses of human lower limb system, in particular the knee joint, following total hip replacement is significant for rehabilitation training of patients.
OBJECTIVE: To analyze the effects of total hip replacement on knee joint deformation during motions by comparing the data collected from a patient who underwent total hip replacement 19 months ago and a healthy control subject under the same testing environment and method.
METHODS: The patient was measured through the use of Optotrak Certus motion capture system (Northern Digital Inc., California), and simultaneously measurements were performed in a healthy control subject presenting with similar body weight and body mass. Measurement indices included step length, step frequency, joint corner, and joint displacement curves. Speed and acceleration of each joint were calculated based on measured data. 
RESULTS AND CONCLUSION: Following total hip replacement, the structure of natural hip joint was destroyed. Although the gait did not change greatly, experimental data showed that knee joint deformed more greatly than normal gait, indicating the self-accommodation of human body, i.e., increasing the loading and deformation magnitude of knee joints can avoid the injuries caused by hip joint surgery.

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