The most proximal pin is inserted through the greater trochanter slightly inferiorly. Its correct insertion and placement is essential for the stability of the proximal segment.
Pearl: When applying three pins in each fragment, insert only two pins initially and link with a rod fully loaded with three clamps. After tightening the clamps on the initial two pins, insert the third pin through its relevant clamp. If all three pins are inserted at once, it may prove impossible to link all three to the tube, if they are in slightly different alignments.