Method and apparatus for surgically preparing a tibia for implantation of a prosthetic implant component which has an offset stem

A method of surgically preparing a tibia for implantation of a prosthetic implant, comprising the steps of:

• securing a tray trial to a proximal end of the tibia, wherein the tray trial defines a plate opening therethrough, the plate opening having a center point;
• advancing a first bone working tool through the plate opening at the center point to form a first hole in the tibia;
• securing a first guide to the tray trial, wherein the first guide defines a first bore and a second bore, each of the first and second bores having a center point offset from the center point of the plate opening;
• and
• advancing a second bone working tool through one of the first bore and the second bore to form a second bore in the tibia.

A method of surgically preparing a tibia for implantation of a prosthetic implant, comprising the steps of:

• securing a tray trial to a proximal end of the tibia, wherein the tray trial defines a plate opening therethrough, the plate opening having a center point;
• advancing a first bone working tool through the plate opening to form a first hole in the tibia;
• securing a tool guide to the tray trial, wherein the tool guide defines a first bore and a second bore, each of the first and second bores having a center point offset from the center point of the plate opening;
• determining a direction of offset of a medullary canal of the tibia from a center of the tibia;
• and
• advancing a second bone working tool through one of the first bore and the second bore that corresponds to the direction of offset of the medullary canal to form a second bore in the tibia.