Table 2.
Radiographic parameters of hips with unknown etiology (88 hips)
| Variables | Number of hipsa | Age of patientsb (years) | ||||
|---|---|---|---|---|---|---|
| Female | Male | Overall | Female | Male | Overall | |
| Pistol grip deformity | ||||||
| Yes | 25 (28.4%) | 11 (12.5%) | 36 (40.9%) | 69.8 ± 8.1 | 74.4 ± 5.4c | 71.2 ± 7.6 |
| No | 46 (52.3%) | 6 (6.8%) | 52 (59.1%) | 72.0 ± 9.6 | 70.7 ± 12.9 | 71.8 ± 9.9 |
| Femoral head sphericity | ||||||
| Aspherical | 49 (55.7%) | 13 (14.8%) | 62 (70.5%) | 71.1 ± 8.5 | 72.5 ± 9.4 | 71.4 ± 8.7 |
| Spherical | 22 (25.0%) | 4 (4.5%) | 26 (29.5%) | 71.4 ± 10.3 | 74.8 ± 6.2 | 71.9 ± 9.8 |
| Crossover sign | ||||||
| Yes | 9 (10.2%) | 6 (6.8%) | 15 (17.0%) | 69.8 ± 11.9 | 73.7 ± 8.3 | 71.3 ± 10.4 |
| No | 62 (70.5%) | 11 (12.5%) | 73 (83.0%) | 71.4 ± 8.8 | 72.7 ± 9.1 | 71.6 ± 8.8 |
| Coxa profunda | ||||||
| Yes | 22 (25.0%) | 1 (1.1%) | 23 (26.1%) | 69 ± 9.3 | 53 | 68.3 ± 9.6 |
| No | 49 (55.7%) | 16 (18.2%) | 65 (73.9%) | 72.2 ± 9.0 | 74.3 ± 7.1 | 72.7 ± 8.6 |
aThe values are expressed as the number and percent of patients who were categorized within unknown etiology
bThe values are expressed as age in years and the standard deviation
cA significant difference (p < 0.05) was shown between males and females in the same radiographic feature