Figure 7

Hip anteroposterior radiography image (left) and hip ultrasonography image of the same hip (right). The patient was a 2-month-old girl. IHDI grade 2, Graf type D. Anatomical interpretation of the ultrasonography image: 1, bony part of the femoral neck. 2, cartilaginous femoral head. 3, bony part of acetabular roof. 4, acetabular labrum. IDHI International Hip Dysplasia Institute.