A bone fixation device includes an elongated body (a) having a first channel extending therethrough and configured for insertion into a bone, a first opening (b) formed on a first side wall of the body, the first side wall facing a lateral direction when implanted in a target orientation within the bone and a second opening (c) formed on a second side wall of the body opposite the first opening. A second channel (d) extends through the body from the first opening to the second opening and is dimensioned to permit insertion of an implant therethrough. A first bump (e) is positioned about a periphery of the first opening at a location at which a stress concentration would be a maximum if no such first bump were formed. The first bump is dimensioned to diffuse a concentration of stress about the periphery due to forces applied thereto by an implant extending through the second channel.
