Knee balancing for revision procedures

A system for enhancing a surgical procedure on a knee, the system comprising:

• a femoral adjustment member removably engageable with a cut distal end of a femur, the femoral adjustment member comprising:
• a femoral body having a lateral side and a medial side;
• a lateral adjustable member disposed on the lateral side of the femoral body;
• and
• a medial adjustable member disposed on the medial side of the femoral body, wherein the lateral adjustable member and medial adjustable member are separately adjustable to adjust the position of the femoral body relative to the cut distal end of the femur and to apply tension to at least one of the lateral collateral ligament or the medial collateral ligament of the knee;
• a self-centering sliding mechanism disposed on the femoral body closer to the medial side than to the lateral side, the sliding mechanism configured to slide over an intramedullary rod extending from the cut end of the distal femur and to position the femoral body about the cut end of the distal femur, wherein the sliding mechanism comprises:
• a slider frame that rotates about a first axis defined by a slider holder connecting the slider frame to the femoral body and about a second axis defined by a longitudinal center of the slider frame;
• and
• a slider bolt that slides up and down the slider frame;
• and
• a locking clamp slidable over a distally extending portion of the intramedullary rod and adapted to lock the femoral adjustment member in a fixed position abutted flush against the cut distal end of the femur creating a balance plane from which to balance an extension axis to a flexion axis, wherein the locking clamp comprises a rotatable body having a lumen offset from a center of the rotatable body.

A system for enhancing a surgical procedure on a knee, the system comprising:

• a femoral adjustment member removably engageable with a cut distal end of a femur, the femoral adjustment member comprising:
• a femoral body having a lateral side and a medial side;
• a lateral adjustable member disposed on the lateral side of the femoral body;
• and
• a medial adjustable member disposed on the medial side of the femoral body, wherein the lateral adjustable member and medial adjustable member are separately adjustable to adjust the position of the femoral body relative to the cut distal end of the femur and to apply tension to at least one of the lateral collateral ligament or the medial collateral ligament of the knee;
• a self-centering sliding mechanism disposed on the femoral body closer to the medial side than to the lateral side, the sliding mechanism configured to slide over an intramedullary rod extending from the cut end of the distal femur and to position the femoral body about the cut end of the distal femur, wherein the sliding mechanism comprises:
• a slider frame that rotates about a first axis defined by a slider holder connecting the slider frame to the femoral body and about a second axis defined by a longitudinal center of the slider frame;
• and
• a slider bolt that slides up and down the slider frame;
• a first cutting guide engageable with the femoral adjustment member;
• and
• a second cutting guide, wherein the first cutting guide is adapted to facilitate making one or more initial bone cuts on the cut distal end of the femur before attaching the second cutting guide with the femur to make final bone cuts on distal end of the femur and the second cutting guide is engageable with the cut distal end of the femur based on the position of the one or more initial bone cuts made on the distal femur facilitated by the first cutting guide.