Patent ID: 8480756

Claim:
A set of femoral hip stems, the set including at least two different sizes of femoral hip stems, each femoral hip stem size including a single piece elongated insertion region for insertion into an intramedullary canal of a femur, the set of femoral hip stems comprising: (a) a first femoral hip stem size having a first elongated insertion region extending along a first longitudinal axis, the first elongated insertion region having a first medial face, a first lateral face, a first shoulder on the first lateral face, a first proximal width extending between the first medial and lateral faces perpendicular to the first longitudinal axis at a level of the first shoulder, and a first distal width extending between the first medial and lateral faces perpendicular to the first longitudinal axis at a level 80 millimeters distal to the first proximal width, wherein the first femoral hip stem size tapers from the first shoulder to a first distal tip; and (b) a second femoral hip stem size having a second elongated insertion region extending along a second longitudinal axis, the second elongated insertion region having a second medial face, a second lateral face, a second shoulder on the second lateral face, a second proximal width extending between the second medial and lateral faces perpendicular to the second longitudinal axis at a level of the second shoulder, and a second distal width extending between the second medial and lateral faces perpendicular to the second longitudinal axis at a level 80 millimeters distal to the second proximal width, wherein the second femoral hip stem size tapers from the second shoulder to a second distal tip; wherein the difference between the first and second proximal widths is not substantially equal to the difference between the first and second distal widths; wherein the second distal width is greater than the first distal width.