A bone screw deforms on the same order as the bone, thus providing substantially uniform loading along an entire length of the thread of the bone screw. The bone screw evenly distributes stress by matching the effective cross-sectional area of the bone screw times its modulus of elasticity with the effective cross-sectional area of the parent material (i.e. bone) times its modulus of elasticity so that so that the linear deformation of each is preferably substantially equal to the other.
