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US 11,033,396 B2Granted
Orthopaedic prosthetic system for a rotating hinged-knee prosthesis
AssigneeDepuy Ireland Unlimited Company
InventorsAaron J. Matyas, Tyler S. Hathaway, Paul B. Sade, Sr., Nathan C. Reeder, Kyle D. Steffe, David E. Rottger, Anthony J. Webb
Life of this patent
Estimating the term…
Abstract
An orthopaedic prosthesis system includes a femoral component configured to be attached to a distal end of a patient's femur. A tibial tray is configured to be attached to a proximal end of a patient's tibia. A tibial insert is configured to be positioned between the femoral component and the tibial tray. An elongated pin rotatably couples the tibial insert to the femoral component.
Claims13
An orthopaedic prosthesis system, comprising:
- a femoral component configured to be attached to a distal end of a patient's femur,
- a tibial tray configured to be attached to a proximal end of a patient's tibia,
- a tibial insert configured to be positioned between the femoral component and the tibial tray, the tibial insert including an inferiorly-extending tab that is configured to engage the tibial tray to limit rotation of the tibial insert relative to the tibial tray about a first axis extending in an inferior-superior direction,
- an elongated pin extending along a second axis extending in a medial-lateral direction, the elongated pin rotatably coupling the tibial insert to the femoral component, wherein the femoral component is configured to rotate about the second axis relative to the tibial insert over a range of motion, and
- an elongated stem extending from a first end connected to the elongated pin and a second end positioned in a cavity defined in the tibial insert, the elongated stem being configured to move along the first axis in an inferior-superior direction between an inferior position and a superior position when the femoral component is rotated about the second axis relative to the tibial insert over the range of motion.
2 more elements
A method of performing an orthopaedic surgical procedure,
- selecting a tibial insert for use with a femoral component configured to be attached to a distal end of a patient's femur and a tibial tray configured to be attached to a proximal end of a patient's tibia,
- attaching a first tab to the tibial insert, the first tab configured to permit a first range of rotation between the tibial tray and the tibial insert,
- evaluating a range of motion of the patient's femur relative to the patient's tibia with the tibial insert and the first tab positioned between the distal end of the patient's femur and the proximal end of the patient's tibia,
- selecting a second tab configured to permit a second range of rotation between the tibial tray and the tibial insert,
- attaching the second tab in place of the first tab,
- evaluating the range of motion of the patient's femur relative to the patient's tibia with the tibial insert and the second tab positioned between the distal end of the patient's femur and the proximal end of the patient's tibia, and
- coupling the femoral component to the tibial insert with an elongated pin extending in a medial-lateral direction,
- wherein the femoral component is configured to rotate about a first axis defined by the elongated pin.
5 more elements
Dependencies are inferred from the claim text.