Patent ID: 8852288

Claim:
A hip prosthesis comprising: a mounting pin portion extending from a first end to a second end, wherein the first end is configured to couple with a hinge ball, wherein the mounting pin extends along a pin axis from the first end to the second end; a fastening pin extending from near the second end of the mounting pin to a fastening pin terminal end, the fastening pin having a first side and an opposed second side, both the first side and the second side extending between a third concave side and an opposed fourth side; a plate extending from a first mounting pin side of the mounting pin to a second mounting pin side of the mounting pin, wherein the first mounting pin side is adjacent the third concave side; wherein the plate forms a first angle with the pin axis of the mounting pin near the first mounting pin side that is between 40 degrees and 70 degrees; wherein the plate forms a second angle with a tangent of the fastening pin near the third concave side of the fastening pin; wherein the fastening pin is configured to fasten the hip prosthesis in a shaft of a bone; wherein the first side and the second side both have a plurality of longitudinally extending grooves formed therein.