Early slipping of the femoral epiphysis of the left hip. A cast after twelve weeks was applied. The image of the left hip shows growth arrest andno progression with conservative management. (A and B) Anteroposterior and frog-leg lateral radiographs of the pelvis made before treatment, showing the zone of rarefaction on the metaphyseal side in the left hip of the growth plate in Chronic/Mild SCFE, in a ten and half year old boy. (C and D) Anteroposterior and frog-leg lateral radiographs eight months after spica cast had been discontinued. The rarefaction zone has diminished and persists in the left hip. (E and F) Final result. The growth-plate has completely closed on both radiographs of the left hip.