Table 3 Intra- and interrater reliability with 95% confidence interval (CI) for the measurement of displacement of the VUJ, PMU and ARJ (mm) and the VUJ angle of displacement (degrees)
VUJ Displacement (mm) | PMU Displacement (mm) | ARJ Displacement (mm) | VUJ Angle of displacement (degrees) | |
|---|---|---|---|---|
Intrarater Reliability ICC (95%CI) Day 1 vs Day 2 | ||||
PCL axis system | 0.97 (0.93, 0.99) | 0.93 (0.84, 0.97) | 0.78 (0.53, 0.91) | 0.99 (0.98, 1.00) |
HOR-1 axis system | 0.96 (0.90, 0.99) | 0.80 (0.58, 0.92) | 0.71 (0.38, 0.88) | 0.96 (0.89, 0.98) |
HOR-2 axis system | 0.96 (0.91, 0.99) | 0.89 (0.74, 0.95) | 0.78 (0.51, 0.91) | 0.99 (0.97, 1.00) |
Interrater Reliability ICC (95%CI) Observer 1 vs Observer 2 | ||||
PCL axis system | 0.97 (0.93, 0.99) | 0.89 (0.75, 0.96) | 0.84 (0.63, 0.93) | 0.99 (0.96, 0.99) |
HOR-1 axis system | 0.94 (0.85, 0.98) | 0.64 (0.26, 0.83) | 0.60 (0.22, 0.82) | 0.95 (0.87, 0.98) |
HOR-2 axis system | 0.94 (0.86, 0.98) | 0.85 (0.67, 0.94) | 0.76 (0.48, 0.9) | 0.98 (0.95, 0.99) |