Femoral rod for hip prosthesis, has reliefs each of which is constituted by winglet, where each relief has apex forming acute and sharp angle for permitting winglets to penetrate in cortical bone during implantation

摘要

The rod (1) has reliefs, each of which is constituted by a winglet (12), where the reliefs are provided on sides (7A, 7B), and each relief is provided in longitudinal axes for introduction in a femoral cavity. Each relief in pyramidal shape has an apex (12A) that is sharp. The apex forms an acute and sharp angle for permitting the winglets to penetrate in a cortical bone during the implantation.