Table 2 Tibial and talar rotation in the coronal and sagittal plane per observer (in degrees), given as mean with standard deviation (SD) with absolute difference between observers (∆), and inter-observer results with intraclass correlation coefficient and p-value between both observers (n = 8)
|  | Tibial alignment (°) | Talar alignment (°) | ||
|---|---|---|---|---|
Observer | Coronal Mean ± SD | Sagittal Mean ± SD | Coronal Mean ± SD | Sagittal Mean ± SD |
1 | 5.8 ± 3.6 | 4.1 ± 2.8 | 4.8 ± 3.5 | 4.6 ± 2.7 |
2 | 6.4 ± 3.2 | 3.9 ± 3.1 | 4.0 ± 3.2 | 5.4 ± 2.8 |
∆ | 0.6 | 0.2 | 0.8 | 0.8 |
ICC (p-value) | ||||
 Means 1–2 | 0.98 (p < 0.01) | 0.98 (p < 0.01) | 0.80 (p < 0.01) | 0.95 (p < 0.01) |
 Means 1a-1b | 0.98 (p < 0.01) | 0.98 (p < 0.01) | 0.98 (p < 0.01) | 0.96 (p < 0.01) |