The stress interference at the intersections between the slots and nail-holes were also discarded by the rearrangement of the slots on the nail surface to keep away from the nail-hole edges.

• 针对导槽与螺丝孔相切而导致的应力集中情形，提出重新安排骨髓内钉上的导槽位置，使之避开螺丝孔边缘，以此解决这样的状况。