A shoulder replacement system including a humeral head having a curved exterior surface and a generally planar exterior surface. The humeral head can define a main body axis extending transversely from the generally planar exterior surface to the curved exterior surface. The humeral head can also include a polar axis extending parallel to the planar exterior surface from an outer edge of the humeral head intersecting the main body axis and an equatorial axis extending parallel to the planar exterior surface from the outer edge of the humeral head intersecting the main body axis and the polar axis. The shoulder replacement system can also include a humeral stem insertable into a humerus and a glenoid implant that can be engaged to bone defining a glenoid cavity and defining an articulating surface.
