This study randomly selected 25 volunteers for standing weight-bearing and stress position footprints collection, and measured the relevant indicators of stress position footprints and standing weight-bearing position footprints. Two foot and ankle surgeons conducted two measurements respectively on the footprints. Intra-observer and inter-observer reliability were calculated using intra-class correlation coefficients (ICC). Pearson correlation coefficient, ICC, scatter plot analysis, and paired t-test were used to analyze the stress and weight-bearing position data.
The intra-observer and inter-observer measurement values were reliable. There was a certain degree of correlation between the stress position footprints and weight-bearing position footprints in terms of Pearson correlation coefficient, ICC, and scatter plot analysis. Paired t-tests showed significant differences in Clarke angle (t 2.636, p .012), C-S index (t 10.568, p .000), arch indx (t 2.176, p .035), and arch lower angle (t 6.246, p .000).
The stress position device can generate a certain degree of stress, and after further optimization and improvement of the stress position device, it is feasible to apply it to weight-bearing CT examination in clinical settings.
方法:本研究随机选取25名志愿者进行站立负重和压力体位足迹采集,并测量了应力位置足迹和站立负重位置足迹的相关指标。两名足踝外科医生分别对脚印进行了两次测量。使用类内相关系数(ICC)计算观察者内和观察者间的可靠性。皮尔逊相关系数,ICC,散点图分析,和配对t检验用于分析应力和负重位置数据。
结果:观察者内部和观察者之间的测量值是可靠的。根据皮尔逊相关系数,应力位置足迹和负重位置足迹之间存在一定程度的相关性,ICC,和散点图分析。配对t检验显示克拉克角度存在显著差异(t2.636,第012页),C-S指数(t10.568,第000页),拱度(t2.176,第035页),和拱下角度(t6.246,第000页)。
结论:应力位置装置可以产生一定程度的应力,并对应力定位装置进行了进一步优化和改进,将其应用于临床负重CT检查是可行的。