Posterior-Stabilized Knee Implant Components and Instruments

A patient-adapted articular repair system for treatment of a knee joint of a patient, the knee joint including a femur, the system comprising:

• a patient-adapted femoral implant component having at least two planar bone-facing surfaces;
• and
• a patient-adapted intercondylar femoral box-cut guide, the patient-adapted intercondylar femoral box-cut guide comprising:
• at least two planar surfaces configured to engage corresponding resected surfaces of the femur, wherein the at least two planar surfaces of the guide are sized and positioned based on the size and position of the at least two planar bone-facing surfaces of the femoral implant component;
• and
• first, second, and third planar box-cut guide surfaces, wherein each guide surface is configured to guide a saw blade into a portion of the femur along a predetermined resection plane to thereby create corresponding first, second, and third planar cut surfaces of the femur,
• wherein the first guide surface and the third guide surface are parallel, and
• wherein the second guide surface is perpendicular to the first guide surface and to the third guide surface;
• a first patient-adapted femoral resection guide configured to engage at least a portion of the femur in a predetermined position and to guide a saw blade into a portion of the femur along a predetermined resection plane to thereby create at least one of the at least two resected surfaces of the femur;
• and
• wherein the first patient-adapted femoral resection guide includes a bone-facing surface sized and shaped based on a substantially uncut surface of the femur such that then the bone-facing surface is brought into contact with the uncut surface of the femur it engages and aligns with the uncut surface in a single, predetermined position.