Preparation for screw insertion
The sites of the skin and fascial incisions for the drill bit and locking screws may be determined after the drill sleeve assembly has been in the holes of the aiming device.
The length of the locking screws is read from the calibrated drill bit. The correct length is confirmed antero-posteriorly using the image intensifier. The insertion handle should not be removed until the correct placement of all the locking screws has been verified.