Table 2 Clinical outcome of 24 patients at 2 years after surgery

Duration (years)

3 (ranged, 2–5)

Hip joint reduction

 Concentric reduction

21

 Off-concentric reduction

3

Acetabular index

 15°–20°

22

 25°–30°

2

Femoral morphology

 Normal

2

 Malunion of femur head

17

 Normal reduction of formal neck and acetabulum

3

Function of the hip joint

 Normal

8

 Mild limitation of flexion and rotation

13

 Fibrous ankylosis

3