Fig. 2A–D.

Radiographs show the hips of a 7-year-old girl with LCPD of the right hip. She had had pain and limping gait for 5 months before diagnosis. (A) A preoperative radiograph shows LCPD classified as Catterall Group 3 and Lateral Pillar Group C. There is reduced FHC. (B) A postoperative radiograph shows satisfactory FHC after subtrochanteric femoral osteotomy with 25° varization and 20° external rotation. (C) An AP radiograph and (D) a radiograph in Lauenstein projection taken at 5-year followup show a spherical femoral head.