Patent ID: 8579905

Claim:
A system for preparing a knee joint for receiving a knee implant comprising: a tool insertable between a distal end of a femur and a proximal end of a tibia for determining an extension gap when said knee joint is extended and a flexion gap when said knee joint is flexed; a combination bur template and spacer block comprising: a bur template having an upper end, a lower end and a curved leading face extending between the upper and lower ends thereof, a spacer block extending from the lower end of said bur template, said spacer block having a top surface, a bottom surface, side surfaces, a leading end for insertion into said knee joint between said femur and said tibia, and a trailing end spaced from the leading end and adjacent the lower end of said bur template, the spacer block having an opening extending through the top and bottom surfaces thereof, wherein the curved leading face of said bur template is engageable with a femoral condyle of said femur when said spacer block is inserted into said knee joint; a posterior resection guide locator coupled to the trailing end of said spacer block, the posterior resection guide locator having at least one guide hole adapted to receive at least one alignment pin; a posterior resection guide for resecting a posterior region of said femoral condyle, the posterior resection guide having at least one pin opening for coupling the posterior resection guide to the at least one alignment pin; and a shim for raising and lowering said bur template relative to the femoral condyle of said femur, the shim having a post and at least one sidewall projecting from a first surface thereof, wherein said system has a first configuration whereby said shim overlies the top surface of said spacer block with the post inserted into the opening thereof and the at least one sidewall engaged to at least one of the side surfaces thereof and a second configuration whereby said shim underlies the bottom surface of said spacer block with the post inserted into the opening thereof and the at least one sidewall engaged to at least one of the side surfaces thereof.