Figure 4.

(A) Plain radiograph and (B) computed tomography scan of a 6 year-old boy with a simple bone cyst at the right proximal femur. (C and D) Intramedullary nailing and injection of demineralized bone matrix and autologous bone marrow from the ipsilateral iliac crest was done.(E and F) Plain radiographs of the right proximal femur show a subcapital femoral neck fracture after a fall from a bike three weeks postoperatively. (G) Anteroposterior and (H) lateral radiographs of the right proximal femur nine months postoperatively, show thickening of cortex and healing of the cyst (Neer stage II).