Table 3

Prevalence of abnormal radiological signs

SignNumber of times observed in 68 hips
Pistol grip deformity11 1227 (40%)
CCD angle <125°122 (3%)
Femoral head neck index <150130
Coxa profunda1223 (34%)
Protrusio acetabuli120
Lateral centre edge angle >39°1520 (29%)
Acetabular index ≤01231 (46%)
Cross-over sign1225 (37%)