π Normal
TECHNIQUE / POSITIONING
1π AP pelvis radiograph obtained
2π Symmetrical positioning with both hips included
3π Suboptimal positioning / pelvic rotation
OSSIFICATION CENTERS
4π Femoral head ossification centers present and appropriate for age
5π Delayed appearance of femoral head ossification center
6π Asymmetrical femoral head ossification
ACETABULAR DEVELOPMENT
7π Acetabular roofs well formed with normal acetabular angle
8π Increased acetabular angle
9π Shallow acetabulum
HIP JOINT ALIGNMENT
10π Femoral heads located within acetabula
11π Lateral / superior displacement of femoral head
12π Hip dislocation
SHENTON’S LINE
13π Shenton’s lines are intact bilaterally
14π Disruption of Shenton’s line
15π Bilateral Shenton’s line abnormality
TRIRADIATE CARTILAGE
16π Triradiate cartilage open and normal for age
17π Premature closure of triradiate cartilage
18π Asymmetrical triradiate cartilage
TRAUMATIC / OTHER FINDINGS
19π No fracture or bony abnormality
20π Pelvic or proximal femoral fracture
21π Features suggestive of developmental dysplasia of the hip (DDH)
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