Seating chisel insertion
Insert the seating chisel through its guide into the distal femur. Use the
slotted hammer to control the rotation of the seating chisel in the bone, so
that the tongue of the guide lies in the anatomical long axis of the shaft.
An assistant may need to apply counter pressure on the medial side of the
femur, especially if preliminary lag screw fixation of an intercondylar split
has been performed.