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a left side tibial insert attachable to the insert interface of the tibial baseplate component, the left side tibial insert comprising a tibial articulation surface configured to articulate with the femoral articulation surface and rotate the tibia about the longitudinal axis passing through a medial tibial compartment of the left side tibial insert during flexion or extension of a left side knee joint; and |
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21.A knee joint prosthesis system for implantation in a knee joint of a patient, the knee joint comprising a femur and a tibia, the knee joint having a condition, wherein the knee joint is on a first side of the patient, selected from a right side and a left side, and is not on a second side of the patient, the second side comprising the other of the right side and the left side, the knee joint prosthesis system comprising: |
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a right side tibial component attachable on the tibia, the right side tibial component comprising a tibial articulation surface configured to articulate with the femoral articulation surface and rotate the tibia about a longitudinal axis passing through a medial tibial compartment of the right side tibial component during flexion or extension of a right side knee joint; |
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20. The method of claim 19, wherein condition of the knee joint comprises one of a varus condition, a valgus condition, and a balanced condition. |
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14.The knee joint prosthesis system of claim 12, wherein the tibial articulation surface facilitates tibiofemoral rotation within the medial tibial compartment during flexion of the knee joint where the condition is a valgus knee joint. |
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wherein the left side tibial insert is attached to the insert interface of the tibial baseplate component of the right knee joint such that the left side tibial insert constrains the femoral articulation surface within the medial tibial compartment and mitigates the condition. |
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the knee joint is a right knee joint of the patient; and |
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13.The knee joint prosthesis system of claim 12, wherein: |
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the tibial articulation surface of the left side tibial insert is shaped to cooperate with the femoral articulation surface to change kinematics of the knee joint having the condition if the knee joint comprises the right side knee joint. |
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the tibial articulation surface of the right side tibial insert is shaped to cooperate with the femoral articulation surface to change kinematics of the knee joint having the condition if the knee joint comprises the left side knee joint; and |
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15.The knee joint prosthesis system of claim 12, wherein the tibial articulation surface adjusts mediolateral stability during flexion of the knee joint where the condition is a varus knee joint. |
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a right side tibial insert attachable to the insert interface of the tibial baseplate component, the right side tibial insert comprising a tibial articulation surface configured to articulate with the femoral articulation surface and rotate the tibia about a longitudinal axis of the tibia passing through a medial tibial compartment of the right side tibial insert during flexion or extension of a right side knee joint; |
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a femoral component configured to be implanted on the femur, the femoral component comprising a femoral articulation surface; |
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12.A knee joint prosthesis system for implantation in a knee joint of a patient, the knee joint comprising a femur and a tibia, the knee joint having a condition, wherein the knee joint is on a first side of the patient, selected from a right side and a left side, and is not on a second side of the patient, the second side comprising the other of the right side and the left side, the knee joint prosthesis system comprising: |
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11. The knee joint prosthesis system of claim 1, wherein the tibial insert comprises one of a cruciate retaining tibial insert, a constrained condylar knee tibial insert, a posterior stabilizing tibial insert, and a medially-laterally asymmetric tibial insert and wherein the condition comprises one of a varus condition and a valgus condition. |
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10. The knee joint prosthesis system of claim 8, wherein the medial femoral compartment and the lateral femoral compartment are symmetrical. |
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9. The knee joint prosthesis system of claim 8, wherein, the lateral dwell point migrates anteriorly and outwardly and the medial dwell point migrates posteriorly and outwardly. |
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8.The knee joint prosthesis system of claim 1, wherein the femoral articulation surface comprises a medial femoral compartment and a lateral femoral compartment and wherein the medial tibial compartment engages the lateral femoral compartment at a lateral dwell point during flexion and the lateral tibial compartment engages the medial femoral compartment at a medial dwell point during flexion. |
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7.The knee joint prosthesis system of claim 1, wherein the medial tibial compartment comprises a medial perimeter, a medial high point, and a medial low point and wherein the lateral tibial compartment comprises a lateral perimeter, a lateral high point, and a lateral low point. |
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6.The knee joint prosthesis system of claim 5, wherein the tibial articulation surface increases constraint on a lateral collateral ligament of the first knee joint and decreases tension on a medial collateral ligament of the first knee joint. |
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