Table 1.
Inter- and intraobserver error of measurements: ICC
| Parameters | Mean (SD, range) | 95 % CI | ICC | ||
|---|---|---|---|---|---|
| Intraobserver 1 | Intraobserver 2 | Interobserver | |||
| Parameters for reliability of acetabular centre | |||||
| OE (mm) | 23.99 (1.82, 20.47–27.69) | 23.05–24.92 | 0.852 | 0.855 | 0.820 |
| OC (mm) | 23.53 (1.84, 20.39–27.45) | 22.59–24.48 | 0.863 | 0.871 | 0.823 |
| Depths of posterior acetabular wall (mm) | |||||
| 100 % (intact wall) | 33.82 (4.30, 25.11–44.77) | 32.71–34.93 | 0.975 | 0.947 | 0.903 |
| 80 % (20 % wall defect) | 26.88 (3.33, 20.08–35.81) | 26.02–27.74 | 0.972 | 0.980 | 0.899 |
| 50 % (50 % wall defect) | 16.91 (2.15, 12.55–22.38) | 16.35–17.46 | 0.902 | 0.951 | 0.827 |
| Degrees of posterior acetabular arc angles of the femoral head | |||||
| 100 % (intact wall) | 92.25 (11.34, 69.00–121.00) | 89.32–95.18 | 0.987 | 0.956 | 0.913 |
| 80 % (20 % wall defect) | 77.42 (10.04, 55.00–99.00) | 74.82–80.01 | 0.974 | 0.972 | 0.883 |
| 50 % (50 % wall defect) | 50.63 (6.58, 37.00–64.00) | 48.93–52.33 | 0.958 | 0.963 | 0.830 |