Fig. 6.

Intraoperative photograph demonstrating the two Schanz screws inserted into the femur proximal and distal to the planned osteotomy in order to facilitate derotation. The osteotomy was performed with drill holes and with an oscillating saw (a). Fixation with a locking plate after a femoral derotation osteotomy. The degree of the desired correction is visualized by the small vertical cuts (black arrows) (b)