步态分析技术评估人工踝关节置换前后踝关节功能的改善程度

背景：人工踝关节置换目前得到了广泛的应用,疗效也得到了一定的认同,但目前的疗效评估多是通过各类评分标准进行评估,但对于踝关节置换后患者步态改变尚缺乏研究。目的：通过Kofoed评价系统及步态分析技术比较人工踝关节置换患者置换前置换后踝关节功能的改善程度。方法：收集2007-09/2011-06在上海交通大学医学院附属仁济医院骨科进行人工踝关节置换的患者,对其置换前后行Kofoed评分及步态分析,并与15例正常对照者进行比较,观察置换前后患者踝关节功能的改变。结果与结论：人工踝关节置换后,Kofoed评分及步态参数步长、步速、患侧单腿支撑时间、双腿支撑时间、患侧踝关节、健侧踝关节、患侧髋关节、患侧膝关节、健侧膝关节行进中关节最大活动度出现明显改善（P〈0.05）。

Gait analysis on the ankle joint function of the patients following total ankle replacement

BACKGROUND： Recently, total ankle replacement has been widely used and the efficacy has also been recognized, but the efficacy is often assessed through various types of assessment criteria. However, there lacks the researches on the gait changes in the patients with total ankle replacement. OBJECTIVE： To evaluate the walking ability of the patients before and after total ankle replacement by using Kofoed scoring system and gait analysis system. METHODS： From September 2007 to June 2011, the patients received total ankle replacement were selected from Department of Orthopedics, Renji Hospital of Shanghai Jiao Tong University School of Medicine and were evaluated by using Kofoed scoring system and gait analysis system. Then compared with 15 normal control subjects and observed the changes of ankle joint function before and after total ankle replacement. RESLUTS AND CONCLUSION： After total ankle replacement, the Kofoed scoring score and most of the gait parameters were significantly improved （P 0.05）, such as the step length, gait velocity, the affected single leg supporting time and legs supporting time, as well as the activity of ipsilateral ankle joint, contralateral ankle joint, ipsilateral hip, ipsilateral knee and contralateral knee.