Fig. 1From: Modified Smith–Petersen approach with rectus-sparing reduces severe avascular necrosis for developmental dysplasia of the hip at walking age: minimum 5-year follow-upa Preoperative arthrography of right hip in a 16-month-old girl shows the hip inverted limbus (the white hollow arrow). b Tentative closed reduction shows that the right dislocated hip was irreducible, with widened acetabulum medial pooling (the black solid arrow)Back to article page