Method of preparing bones for knee replacement surgery
AssigneeMarctec, LLC
InventorPeter M. Bonutti
Life of this patent
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Abstract
A method is provided for performing knee replacement surgery on a leg of a patient. The method includes making a cut on a posterior portion of a patella, making a cut on a proximal portion of a tibia, and making a cut on the distal portion of the femur. The cut on the patella is performed before making the cuts on the tibia and femur.
Claims23
A method of performing a total knee replacement surgery on a leg of a patient, the method comprising, in the following order:
- first, making a cut on a posterior portion of a patella;
- second, making a cut on a proximal portion of a tibia using the additional space created by having first cut the patella;
- and
- third, making a cut on the distal portion of the femur using the additional space created by having first cut the patella and the tibia,
- wherein making the cut on the patella is performed before making the cuts on the tibia and femur.
A method of performing knee replacement surgery on a leg of a patient, the method comprising:
- making a cut surface on a patella, while the patella is in a non everted position;
- making a cut surface on a tibia using the additional space created by having first cut the patella;
- making a cut surface on a femur using the additional space created by having first cut the patella and the tibia;
- positioning a patellar component on the cut surface of the patella, while the patella is in a non everted position;
- positioning a tibial component on the cut surface of the tibia;
- and
- positioning a femoral component on the cut surface of the femur,
- wherein making the cut surface on the patella is performed before making the cut surfaces on the tibia and femur.
A method of performing knee replacement surgery on a leg of a patient, the method comprising:
- making a cut surface and removing bone from a posterior portion of a patella, while the posterior portion of the patella faces in a normal, posterior orientation;
- making a cut surface on a tibia;
- making a cut surface on a femur;
- positioning a tibial component on the cut surface of the tibia;
- positioning a femoral component on the cut surface of the femur;
- and
- positioning a patellar component on the cut surface of the patella, while the posterior portion of the patella faces in a normal, posterior orientation;
- wherein bone is removed from the patella before making the cut surfaces on the tibia and femur, whereby access to the tibia and femur is facilitated by creation of additional space formerly occupied by the bone removed from the patella, and
- wherein trauma to soft tissue connected with the patella is reduced by maintaining the patella in a normal orientation.
A method of performing knee replacement surgery on a leg of a patient, the method comprising:
- making a cut surface on a patella, while the patella is in a non everted position;
- making a cut surface on a tibia using the additional space created by having first cut the patella;
- making a cut surface on a femur using the additional space created by having first cut the patella and the tibia;
- positioning a patellar component on the cut surface of the patella, after making the cut surfaces on the tibia and femur;
- positioning a tibial component on the cut surface of the tibia;
- and
- positioning a femoral component on the cut surface of the femur,
- wherein making the cut surface on the patella is performed before making the cut surfaces on the tibia and femur.
Dependencies are inferred from the claim text.