Table 2 Prevalence of acetabular dysplasia cases, by each parameter in three planes
Definition of AD | All subjects (n = 52) | Males (n = 29) | Females (n = 23) | P value* |
|---|---|---|---|---|
Coronal plane | ||||
CE angle <20° | 11.5% (6/52) (95% CI: 5.4–23.0%) | 10.3% (3/29) (95% CI: 3.6–26.4%) | 13.0% (3/23) (95% CI: 4.5–32.1%) | 0.762 |
Sharp angle >45° | 17.3% (9/52) (95% CI: 9.4–29.7%) | 13.8% (4/29) (95% CI: 5.5–26.3%) | 21.7% (5/23) (95% CI: 9.7–41.9%) | 0.452 |
Acetabular index >14° | 17.3% (9/52) (95% CI: 9.4–29.7%) | 17.2% (5/29) (95% CI: 7.6–34.5%) | 17.4% (4/23) (95% CI: 7.0–37.1%) | 0.989 |
ADR <250 | 23.1% (12/52) (95% CI: 13.7–36.1%) | 17.2% (5/29) (95% CI: 7.6–34.5%) | 30.4% (7/23) (95% CI: 15.6–50.9%) | 0.262 |
AHI <75% | 15.4% (8/52) (95% CI: 8.0–27.5%) | 17.2% (5/29) (95% CI: 7.6–34.5%) | 13.0% (3/23) (95% CI: 4.5–32.1%) | 0.677 |
Axial plane | ||||
AASA <50° | 17.3% (9/52) (95% CI: 9.4–29.7%) | 6.9% (2/29) (95% CI: 1.9–22.0%) | 30.4% (7/23) (95% CI: 15.6–50.9%) | 0.026 |
PASA <90° | 13.5% (7/52) (95% CI: 6.7–25.3%) | 20.7% (6/29) (95% CI: 9.8–38.4%) | 4.3% (1/23) (95% CI: 0.8–21.0%) | 0.086 |
Sagittal plane | ||||
VCA angle <20° | 7.7% (4/52) (95% CI: 3.0–18.2%) | 3.4% (1/29) (95% CI: 0.6–17.2%) | 13.0% (3/23) (95% CI: 4.5–32.1%) | 0.197 |