An end cap must be used. The length of the head of the end cap depends on
the final relationship of the nail end to the intercondylar notch of the distal
In distal femoral fractures, the nail just passes the condylar surface
resulting in the need for a 0 mm end cap. By no means should the end cap
project distal to the subchondral region.
Introduce the end cap using a hexagonal screwdriver.