Table 2 Pelvic movements (changes in pelvic tilt and axial rotation) from the start of surgery to cup placement
At start of surgery | At cup placement | Mean of difference | SD of difference | 95% CI of difference | P value a | |
|---|---|---|---|---|---|---|
(Min, Max) | (Min, Max) | (Min, Max) | ||||
Pelvic tilt (°) | −7.4 (− 39.0, 7.0) | 0.2 (−33.0, 16.0) | 7.6 (−5.0, 19.0) | 3.8 | 7.1–8.2 | < 0.001 |
Axial rotation (°) | 0.8 (−10.0, 7.0) | 4.0 (−9.0, 12.0) | 3.2 (−13.0,12.0) | 3.7 | 2.7–3.7 | < 0.001 |