PMC3348695_01
A) Initial radiograph of patient 1 taken at 1 year 8 months of age; B) an abduction/internal rotation view shows relocation of the femoral head; C) in a radiograph taken with the patient wearing the Ilfeld splint, the right femoral head is pointing to the triradiate cartilage, slightly more lateral than the opposite hip; D) a radiograph taken at age 6 years 8 months shows an intact Shenton's line and the CE angle to measure 25  bilaterally.
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F1
A standard anterior posterior (AP) supine radiograph of the pelvis showed: i) superior and lateral migration of the proximal right femur, ii) delayed maturation of the ossify nucleus of the right femoral head, and iii) increased slope of the right acetabulum (Figure 1A). It disclosed that the right femoral head relocated into the acetabulum, confirming the diagnosis of subluxation (Figure 1B). TN) (Figure 1C) and discharged. The radiologic examination disclosed an excellent result by the Severin classification (Figure 1D).
PMC3348695_02
A) Initial radiograph of patient 2 taken at 12 months of age; B) an abduction/internal rotation view shows relocation of the right femoral head; C) after 2 months of treatment; the ossific nucleus of the right femoral head is medial to the Perkins' line; D) a radiograph taken at age 15 years is normal.
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F2
The AP radiograph of the pelvis revealed dysplasia of the right hip (Figure 2A). Relocation of the femoral head could be obtained with the abduction/internal rotation view (Figure 2B). The radiograph disclosed marked improvement of subluxation (Figure 2C). The subsequent examination and radiographs were normal (Figure 2D).
PMC3348695_03
A) An initial radiograph of patient 3 taken at 9 months of age shows classic signs of right hip dislocation including a false acetabulum; B) an abduction/internal rotation view confirms the diagnosis of subluxation; C) In a radiograph taken after 5 days wearing the Ilfeld splint, the right femoral head is slightly more lateral than the opposite hip; D) a radiograph taken at age 6 years and 10 months shows that the CE angle is 35  on the right and 38  on the left. Changes are present on the right hip: a longer femoral neck, the sourcil is not well defined.
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F3
The radiograph showed the classic signs of developmental dislocation of the right hip, including a false acetabulum (Figure 3A). However, the abduction/internal rotation view showed relocation of the right femoral head (Figure 3B). Five days later, a radiograph was obtained with the patient in the splint (Figure 3C). The femoral head is well covered (Figure 3D).
PMC3348695_04
A) Initial radiograph of patient 4 at the age of 13 months; B) relocation of the femoral head with the AIR view; C) wearing the Ilfeld splint; D) near normal hip at the age of 3 years and 4 months.
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F4
A radiograph revealed a left hip dysplasia (Figure 4A). The hip relocated with the abduction/internal rotation view (Figure 4B). A radiograph was then taken with the child in the Ilfeld splint (Figure 4C). At the age of 3 years and 4 months the hip shows an excellent recovery (Figure 4D).
PMC3348695_05
A) Initial radiograph of patient 5 at the age of 19 months; B) relocation of the femoral head with the AIR view; C) wearing the Ilfeld brace; D) at age 3 years and 10 months, three months after the completion of treatment: the acetabular index is 24  on the left hip and 16  on the right.
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F5
The radiograph showed a left hip dysplasia (Figure 5A). The femoral head relocated with abduction and internal rotation (Figure 5B). She was placed in an Ilfeld brace (Figure 5C). Progressive medialization of the femoral head and improvement of the break in the Shenton's line occurred, although the acetabular index remained elevated (Figure 5D).