Patent ID: 7686812
Filing Date: 2010-03-30
Classification: A61B,A61F

Abstract:
1. A method for setting the internal-external rotational position of a prosthetic femoral component with respect to a tibia comprising: forming a planar surface on a distal surface of a femur; forming a cylindrical surface on a posterior surface of a femur, said cylindrical surface centered about a first axis extending in a proximal-distal direction with respect to a femur of a knee joint; placing a template having a planar surface and a cylindrical surface for engaging said cylindrical surface on the posterior surface of the femur against the formed planar surface on the distal surface of the femur with said cylindrical surface in contact with said cylindrical surface on the posterior surface of the femur and the planar surface of the template in contact with the planar surface of the femur, the planar surface of the template extending perpendicular to a central axis of the cylindrical surface of the template; and rotating said template cylindrical surface on said cylindrical surface of the femur about a second axis parallel with the first axis as the knee joint is moved between flexion and extension until the template cylindrical surface is in a position with respect to a tibial condyle surface to properly balance knee ligaments extending between the femur and the tibia.