What are eight radiographic features of DDH?

1. Shallow acetabulum
2. Increased acetabular angle
3. Small capital femoral epiphysis
4. Delayed ossification of the femoral head
5. Acetabular sclerosis
6. Loss of Shenton’s curve
7. Femoral head lateral to Perkin’s line
8. Femoral head superior to Hilgenreiner’s line