Abstract：
In order to simulate weight-bearing Computed Tomography (CT) examination, this study designed a simple stress position device. By analyzing the relevant data of stress position footprints and weight-bearing position footprints, the feasibility of the stress position device to simulate standing weight-bearing was verified.
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.
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.
摘要：
背景：为了模拟负重计算机断层扫描（CT）检查，本研究设计了一种简单的应力定位装置。通过分析应力位置足迹和负重位置足迹的相关数据,验证了应力定位装置模拟站立负重的可行性。
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。
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。
