Patent ID: 8323287

Claim:
An assembly for use in arthroplasty on a knee joint of a patient comprising a tibia and a femur, the assembly comprising: a spacer including a first end, an opposite second end, an upperside and an underside, the upperside defining a contoured upper surface dimensioned for engagement with the one of the medial or lateral condyles of the femur, the underside defining an under surface dimensioned for engagement with the corresponding one of the medial or lateral condyles of the tibia; and a guide jig including: a first passageway dimensioned to receive a cutting tool for cutting the femur; a second passageway dimensioned to receive a the first end of the spacer, wherein the second end of the spacer is dimensioned to be positioned in the knee joint and to contact the tibia and the femur; and a third passageway dimensioned to selectively receive a portion of an alignment component and a cutting tool for cutting the tibia; and wherein the second passageway is positioned between the first and third passageways, and wherein the first end of the spacer is positioned within the second passageway and extends from a rear side of the guide jig with the second end of the spacer positionable to extend into the knee joint.