Abstract: An orthopaedic surgical instrument assembly is disclosed. The orthopaedic surgical assembly includes a guide tower, an offset tool attached to the guide tower, and a stem trial. A guide tower includes a base surface adapted to be positioned on a proximal end of a patient's tibia and defining a first axis extending through the base surface. The offset tool is configured to rotate about the first axis. The offset tool includes a tool body that is positioned in the guide tower and is integrally formed with a shaft extending through an opening defined in the base surface of the guide tower. The stem trial is removably coupled to a lower end of the shaft.

Abstract: A femoral orthopaedic surgical instrument includes a posterior femoral trial having a cutting guide defined therein and an anterior femoral trial removably coupled to the posterior femoral trial. The anterior femoral trial may also include a cutting guide defined therein. The femoral orthopaedic surgical instrument may also include a base block couplable to the posterior femoral trial in place of the anterior femoral trial. A plurality of additional orthopaedic instruments may be coupled to the base block.

Abstract: An orthopaedic prosthesis includes a femoral component configured to be coupled to a surgically-prepared surface of the distal end of a femur and a plate having an aperture defined therein. The plate is configured to be coupled to the femoral component in one of a number of orientations such that the location of the aperture is adjustable based on the orientation of the plate. The orthopaedic prosthesis also includes a stem configured to be coupled to the femoral component via a bolt. The position of the stem relative to the femoral component is adjustable based on the orientation of the plate.

Abstract: A knee prosthesis kit includes single-winged and double-winged metaphyseal sleeve components. A milling guide and reamers in the kit allow for a cavity to be prepared to receive the metaphyseal sleeve components by pivoting one of the reamers on a portion of the milling guide. The instruments allow the cavity to be aligned with the intramedullary canal regardless of the relative hardness of the bone in the vicinity of the cavity.

Abstract: A femoral orthopaedic surgical instrument includes a posterior femoral trial having a cutting guide defined therein and an anterior femoral trial removably coupled to the posterior femoral trial. The anterior femoral trial may also include a cutting guide defined therein. The femoral orthopaedic surgical instrument may also include a base block couplable to the posterior femoral trial in place of the anterior femoral trial. A plurality of additional orthopaedic instruments may be coupled to the base block.

Abstract: An orthopaedic prosthesis includes a femoral component configured to be coupled to a surgically-prepared surface of the distal end of a femur and a plate having an aperture defined therein. The plate is configured to be coupled to the femoral component in one of a number of orientations such that the location of the aperture is adjustable based on the orientation of the plate. The orthopaedic prosthesis also includes a stem configured to be coupled to the femoral component via a bolt. The position of the stem relative to the femoral component is adjustable based on the orientation of the plate.