All the following are the features of the Kuntscher (K) nail devised by a German surgeon for internal fixation of femoral fractures except

The K nail is a hollow tube with a slot on one side. It is clover shaped cross section. The fixation by K nailing based on the three point fixation i.e when a straight rod passes through a curved medullary cavity It fixes the bones at three points at either ends and at the isthmus. The clover leaf shape is designed to give rotational stability. The nail is provided with an eye at both ends that facilitates removal.