A knee prosthesis for use during performance of a knee replacement procedure includes a plurality of stem components in a range of various sizes, a plurality of femoral components in a range of various sizes, and a plurality of tibial trays in a range of various sizes.Each of the stem components is compatible with each of the femoral components and the tibal trays. Some of the stem components have a single slot formed therein, and other stem components having a pair of slots formed in it.