Stepped tibial baseplate

An orthopaedic implant configured to replace an articular surface of a tibia comprising:

• medial, intermediate and lateral portions each having an articular surface and a bone contacting surface, the intermediate portion joining the medial and lateral portions, the articular surfaces of the medial and lateral portions being concave,
• wherein the bone contacting surface of one of the lateral and medial portions is located superiorly to the articular surface of the other of the lateral and medial portions about a longitudinal axis of the orthopaedic implant and about a mechanical axis of the tibia when the orthopaedic implant is operatively engaged to the tibia, and
• wherein the bone contacting surface of the intermediate portion is sloped with respect to the respective bone contacting surfaces of the medial and lateral portions and from an inferior surface located adjacent to one of the lateral and medial portions to a superior surface located adjacent the other of the lateral and medical portion such that there is a smooth transition from the bone contacting surface of the medial portion to the bone contacting surface of the lateral portion,
• wherein the articular surface of the medial and lateral portions each lie along a respective plane, the respective planes being parallel and offset to one another about the longitudinal axis of the orthopaedic implant.

A orthopaedic implant configured to replace an articular surface of a tibia comprising:

• medial, intermediate and lateral portions each having an articular surface and a bone contacting surface, the intermediate portion joining the medial and lateral portions,
• wherein the articular surfaces of the medial and lateral portions are concave and the articular surface of one of the lateral and medial portions is located superiorly to the articular surface of the other of the lateral and medial portions about a longitudinal axis of the orthopaedic implant and about a mechanical axis of the tibia when the orthopaedic implant is operatively engaged to the tibia, and
• wherein the articular and bone contacting surfaces of the intermediate portion are sloped with respect to the respective articular and bone contacting surfaces of the medial and lateral portions and from an inferior surface located adjacent to one of the lateral and medial portions to a superior surface located adjacent the other of the lateral and medical portion such that there is a smooth transition from the articular surface of the medial portion to the articular surface of the lateral portion and from the bone contacting surface of the medial portion to the bone contacting surface of the lateral portion
• wherein the bone contacting surface of the medial and lateral portions each lie along a respective plane, the respective planes being parallel and offset to one another about the longitudinal axis of the orthopaedic implant.