On the acetabular side, the mean abduction cup angle was 44.3° (35° 50°) and the mean cup height was 19.1 mm (7 33 mm).
Angle, mean cup abduction angle; Br. 1/2/3/4, Ectopic Bone Formation classified as Brooker grade 1, 2, 3,4; Radioluc., Radiolucensies.
Postoperatively, the mean cup abduction angle was 41.7° ± 6.2 SD (28° 54°).
In the cohort, the mean passive abduction angle of the left fourth finger increased from 40.1° in early pregnancy to 41.8° at the postpartum appointment.
The mean passive abduction angle of the left fourth finger increased from 40.1° in early pregnancy to 41.8° at the postpartum appointment (1.7°) (p < 0.0001), Table 2.
In addition, a wide dispersion of the mean passive abduction angle of the left fourth finger was displayed, while the individual measurements at the four appointments were highly inter-correlated (0.68 < r < 0.76, p < 0.0001) (the latter data not shown).
At the postpartum appointment, women in the back pain group had a significantly larger mean passive abduction angle of the left fourth finger of 4.4°, twice as many previous pregnancies and deliveries, and more than twice as frequent back pain in previous pregnancy, as compared with women with no persistent back pain.
The radiological analysis showed a mean preoperative acetabular abduction angle of 65.9° (range 35 100), a mean horizontal distance of 34.7 mm (range 5 60), and a mean vertical distance to the center of the femoral head of 34.3 mm (range 5 70).
