Table 1.
Acetabular cup position according to postoperative spinopelvic mobility
| Stiff | Neutral | Hypermobile | p value1 | p value2 | p value3 | η2 | |
|---|---|---|---|---|---|---|---|
| Cup anteversion standing° (SD; range) | 23.5 (5.9; 10.3–30.9) | 24.1 (6.6; 4.7–43.3) | 21.7 (7.9; 6.0–41.2) | 1.0 | 0.112 | 1.0 | 0.023 |
| Cup inclination standing° (SD; range) | 41.2 (8.0; 28.9–56.0) | 41.5 (6.2; 25.0–56.7) | 41.2 (5.1; 29.7–53.8) | 1.0 | 1.0 | 1.0 | 0.001 |
| Cup anteversion sitting° (SD; range) | 29.3 (5.9; 17.9–38.7) | 36.3 (6.4; 19.0–49.7) | 40.1 (5.6; 30.4–51.3) | < 0.000 | < 0.000 | < 0.000 | 0.192 |
| Cup inclination sitting° (SD; range) | 43.5 (7.6; 29.4–55.1) | 52.4 (8.9; 28.2–72.2) | 60.2 (9.9; 36.2–79.8) | 0.001 | < 0.000 | < 0.000 | 0.200 |
Acetabular cup position in anteversion and inclination in standing and sitting position according to postoperative spinopelvic mobility classification ∆PT. ∆PT < 10° were defined as stiff, ≥ 10–30° as normal, and > 30° as hypermobile
SD standard deviation, η2 ANOVA effect size measure-eta squared
1p value displayed differences between groups Stiff and Neutral
2p value between groups Neutral and Hypermobile
3p value between groups Stiff and Hypermobile. Analysis of Variance (ANOVA) and post hoc analysis according to Bonferroni (due to variance homogeneity) was applied. A significance level of p < 0.05 was assumed