Distal femoral trial with removable cutting guide

摘要

Various embodiments of the present invention provide a distal femoral trial that allows a surgeon to cut the central box geometry of a distal femur using an implant-shaped trial. The trial includes a cutting guide that is removable from the trial and adjustable with respect to the trial. The guide is intended to control the depth and direction of the cutting instruments used to prepare the femur for a posterior stabilized implant.

主权项

1. A method for preparing a distal femur to receive a prosthesis, comprising:
(a) resecting and preparing a patient's distal femur with anterior and posterior cuts; (b) positioning a femoral trial component on the distal femur, the trial component comprising (i) condylar regions separated by an opening, the opening defining a central portion with an anterior-most portion and opening side edges and (ii) a removable cutting guide adapted to be secured in a fixed relationship with the anterior-most portion of the opening; (c) securing the removable cutting guide in a fixed relationship relative to the opening; (d) after securing the removable cutting guide in the fixed relationship relative to the opening, preparing the patient's distal femur to receive a prosthesis using the removable cutting guide to guide at least one cutting instrument; and (e) controlling the at least one cutting instrument in an anterior/posterior direction wherein the step of controlling the at least one cutting instrument in an anterior/posterior direction is controlled by a length of the removable cutting guide.