Table I.
Mean age and data for each parameter in all patients, men and women
| All subjects (128 hips) | Males (64 hips) | Females (64 hips) | P-value | |
|---|---|---|---|---|
| Age (years) | 56.3±15.8 (21–84) | 57.2±16.1(21–83) | 55.5±15.48 (31–84) | 0.520* |
| CE angle (°) | 31.6±7.0 (15.4–47.8) | 32.3±6.5 (17.6–45.7) | 30.9±7.3 (15.4–47.8) | 0.315* |
| Sharp angle (°) | 40.1 ± 6.9 (31.8–54.8) | 39.3 ± 4.1 (31.8–54.8) | 40.9 ± 3.3 (31.9–49.1) | 0.003* |
| Acetabular index (°) | 6.7±9.2 (−7.9–22.8) | 6.6±11.3 (−7.5–22.8) | 6.8±6.4 (−7.9–22.3) | 0.195* |
| Acetabular version | ||||
| A1 (°) | 9.0±8.6 (−14.9–31.3) | 7.8±9.9 (−7.2–29.0) | 10.3±8.8 (−14.9–31.3) | 0.043* |
| A2 (°) | 12.0±9.0 (−10.6–34.0) | 9.9±8.6 (−7.5–34.0) | 14.0±8.8 (−10.6–32.7) | 0.003* |
| A3 (°) | 16.7±8.7 (−7.5–33.4) | 15.1±8.1 (−1.3–33.3) | 18.2±9.1 (−7.5–33.4) | 0.025* |
| A4 (°) | 19.6±7.8 (−3.8–35.6) | 18.2±6.8 (1.51–35.6) | 20.9±8.5 (−3.8–35.6) | 0.030* |
| α-angle | ||||
| R1 (°) | 40.3±5.1 (21.6–55.0) | 41.6±5.0 (30.5–55.0) | 39.0±5.0 (21.6–48.7) | 0.011* |
| R2 (°) | 42.8±5.7 (30.8–60.3) | 44.0±6.1 (30.8–60.3) | 41.7±4.9 (31.6–52.9) | 0.025* |
| R3 (°) | 46.0±5.9 (32.3–64.6) | 46.9±6.5 (32.3–64.6) | 45.0±5.1 (33.9–58.2) | 0.130* |
| R4 (°) | 48.5±5.9 (35.9–68.6) | 49.0±6.5 (35.9–68.6) | 47.9±5.2 (39.2–63.9) | 0.413* |
| R5 (°) | 49.0±6.9 (34.7–75.0) | 51.4±7.0 (39.2–75.0) | 47.7±5.9 (34.7–72.1) | <0.001* |
| R6 (°) | 46.9±7.4 (33.1–74.7) | 49.5±7.4 (34.1–74.7) | 44.3±4.9 (33.1–53.7) | <0.001* |
| HNOR | ||||
| R1 | 0.245±0.03 (0.159–0.371) | 0.243±0.03 (0.159–0.333) | 0.248±0.04 (0.165–0.371) | 0.504* |
| R2 | 0.241±0.07 (0.123–0.349) | 0.245±0.09 (0.123–0.305) | 0.236±0.04 (0.156–0.349) | 0.784* |
| R3 | 0.205±0.04 (0.080–0.336) | 0.211±0.05 (0.080–0.307) | 0.200±0.04 (0.115–0.336) | 0.099* |
| R4 | 0.167±0.05 (0.036–0.323) | 0.165±0.05 (0.036–0.306) | 0.168±0.04 (0.113–0.323) | 0.628* |
| R5 | 0.140±0.03 (0.054–0.270) | 0.136±0.03 (0.057–0.248) | 0.145±0.03 (0.054–0.270) | 0.113* |
| R6 | 0.141±0.03 (0.056–0.263) | 0.132±0.03 (0.056–0.191) | 0.150±0.03 (0.065–0.263) | 0.002* |
| HP positive | 17.2% (10.6%–23.7%) | 24.6% (17.14%–32.06%) | 9.2% (6.65%–11.75%) | 0.019† |
| PGD positive | 14.0% (7.98%–20.01%) | 20.0% (13.07%–26.92%) | 12.3% (17.32%–28.68%) | 0.041† |
Data are presented as mean ± standard deviation (range) or as percentage (95% CI). CE angle, center-edge angle; HNOR, head–neck offset ratio; HP, herniation pit; PGD, pistol grip deformity. A1, axial slice at the level of the superior margin of the femoral head; A2, axial slice 5 mm below the superior margin of the femoral head; A3, axial slice 10 mm below the superior margin of the femoral head; A4, axial slice 15 mm below the superior margin of the femoral head; R1, oblique axial plane through the center of the femoral neck, adjusted to be parallel to the femoral neck–shaft angle (3:00 o’clock); R2, radial plane cranially rotated 15° from R1 (2:30 o’clock); R3, radial plane cranially rotated 30° from R1 (2:00 o’clock); R4, radial plane cranially rotated 45° from R1 (1: 30 o’clock); R5, radial plane cranially rotated 60° from R1 (1: 00 o’clock); R6, radial plane cranially rotated 75° from R1 (12:30 o’clock).
Male versus female, evaluated with the Wilcoxon rank-sum test. P-values of <0.05 were considered statistically significant.
Male versus female, evaluated with χ2 test. P-values of <0.05 were considered statistically significant.