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US 12,575,818 B2Granted
Arthroplasty systems and methods for optimally aligning and tensioning a knee prosthesis
OwnerG. Lynn Rasmusseninventor
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Abstract
A combination of a first assembly for guiding resection of a femur and tibia of a knee joint and a second assembly including femoral and tibial knee components. The combination of the first assembly and the second assembly provides optimal placement and positioning of the femoral and tibial knee components to achieve near-normal knee kinematics and tension. The preparation for and placement of the prosthetic knee components provides medial-pivoting kinematics mimicking that of the natural knee thereby promoting improved outcome for the patient.
Claims10
A device for varying a distance between a tibia and a femur, the device comprising:
- a femoral component defining an opening, wherein at least a portion of the femoral component and at least a portion of the opening are configured to extend into a femur;
- a tibial component configured to be seated on a portion of a tibia;
- and
- a tensioning apparatus configured to couple to the femoral component and to the tibial component and to be selectively actuated to vary a distance between the femoral component and the tibial component.
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Dependencies are inferred from the claim text.