Table 5.
Reported interobserver reliability for radiographic version measurements*
| Study | Measurement compared across different observers | ICC for interobserver reliability | Mean measurement error ± SD for interobserver reliability |
|---|---|---|---|
| Hassan et al. [10] (1995) | Anteversion from AP radiographs of ex vivo cup | 0.97–0.99 | |
| Current study | Anteversion from cross-table lateral radiograph | 0.9686 | |
| Kalteis et al. [14] (2006) | Anteversion from AP pelvis radiograph | 2.3º ± 2.3º | |
| Liaw et al. [18] (2006) | Anteversion from AP pelvis radiograph | 1.0º ± 0.7º | |
| Liaw et al. [19] (2008) | Anteversion from AP pelvis radiograph | 0.5º ± 0.7º | |
| Hayakawa et al. [12] (2008) | Anteversion from AP pelvis radiograph | 1.4° ± 3.1° | |
| Current study | Anteversion from cross-table lateral radiograph | 2.4º ± 2.4º |
* Several studies have commented on the reliability of the measurement of anteversion using either AP or cross-table lateral radiographs; ICC = intraclass correlation coefficient; SD = standard deviation; AP = anteroposterior.