Knee prosthesis with graft ligaments
First Claim
1. A knee joint prosthesis for replacing the articulating portion of a femur and a tibia and allowing for the replacement of soft tissue, comprising:
- a femoral component adapted to be secured to the distal end of the femur and having a femoral bearing surface;
a tibial component adapted to be secured to the proximal end of the tibia and having a tibial surface;
a bearing member having a first bearing surface operable to articulate with the femoral bearing surface and a second surface to be positioned adjacent said tibial surface; and
a graft interconnecting the femur to the tibia and intersecting a knee articulating region, said graft operable to control movement of the femoral component relative to the tibial component.
6 Assignments
0 Petitions
Accused Products
Abstract
The invention relates to a knee joint prosthesis having a bearing and a biologic ligament for replacing the articulating knee portion of a femur and a tibia. The knee joint prosthesis includes a femoral component, a tibial component, a bearing member, and a biologic ligament. The femoral component includes a first femoral bearing surface and a second femoral bearing surface. The tibial component includes a tibial bearing surface. The bearing member includes a first bearing surface which is operable to articulate with the first femoral bearing surface, a second bearing surface which is operable to articulate with the second femoral bearing surface and a third bearing surface which is operable to articulate with the tibial bearing surface. The biologic ligament is coupled to both the tibia and the femur to prevent the knee joint from dislocating and guiding the femoral component along a desired path during extension and flexion.
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Citations
36 Claims
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1. A knee joint prosthesis for replacing the articulating portion of a femur and a tibia and allowing for the replacement of soft tissue, comprising:
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a femoral component adapted to be secured to the distal end of the femur and having a femoral bearing surface; a tibial component adapted to be secured to the proximal end of the tibia and having a tibial surface; a bearing member having a first bearing surface operable to articulate with the femoral bearing surface and a second surface to be positioned adjacent said tibial surface; and a graft interconnecting the femur to the tibia and intersecting a knee articulating region, said graft operable to control movement of the femoral component relative to the tibial component. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 10, 11, 36)
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7. A knee joint prosthesis for replacing the articulating portion of a femur and a tibia and allowing for the replacement of soft tissue, comprising:
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a femoral component adapted to be secured to the distal end of the femur and having a femoral bearing surface; a tibial component adapted to be secured to the proximal end of the tibia and having a tibial surface; a bearing member having a first bearing surface operable to articulate with the femoral bearing surface and a second surface to be positioned adjacent said tibial surface; and a graft interconnecting the femur to the tibia and intersecting a knee articulating region, said craft operable to control movement of the femoral component relative to the tibial component; wherein said femoral component defines a femoral clearance, said bearing member defines a bearing clearance and said tibial component defines a tibial clearance; and wherein said graft passes at least one of said clearances when connecting the femur and the tibia.
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12. A knee joint prosthesis system for replacing a portion of a femur and a tibia, and a graft for interconnecting the femur and the tibia, comprising:
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a femoral component defining a femoral clearance and adapted to be secured to the distal end of the femur, said femoral component having a first femoral bearing surface and a second femoral bearing surface; a tibial component adapted to be secured to the proximal end of the tibia, said tibial component having a tibial bearing surface defining a tibial clearance; a bearing member defining a bearing clearance and having a first bearing surface operable to articulate with said first femoral bearing surface, a second bearing surface operable to articulate with said second femoral bearing surface, and a third surface adapted to be positioned adjacent said tibial bearing surface; and wherein the graft is positioned to clear said tibial clearance and having a first portion connected to a portion of the femur and a second portion connected to a portion of the tibia. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of replacing an articulating knee portion of a femur and a tibia comprising:
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resecting an end portion of the tibia; resecting an end portion of the femur; attaching a tibial prosthetic component corresponding to the resected end portion of the tibia, the tibial prosthetic component having a bearing surface; attaching a femoral prosthetic component corresponding to the resected end portion of the femur, the femoral prosthetic component having a bearing surface; installing a bearing member between the tibial prosthetic component and the femoral prosthetic component, the bearing member having a first surface operable to articulate with the femoral bearing surface; preparing a graft to operably connect the tibia and the femur; and operably interconnecting the tibia and the femur with said graft, such that said graft intersects a knee articulating region. - View Dependent Claims (26, 27)
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23. A method of replacing an articulating knee portion of a femur and a tibia comprising:
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resecting an end portion of the tibia; resecting an end portion of the femur; attaching a tibial prosthetic component corresponding to the resected end portion of the tibia, the tibial prosthetic component having a bearing surface; attaching a femoral prosthetic component corresponding to the resected end portion of the femur, the femoral prosthetic component having a bearing surface; installing a bearing member between the tibial prosthetic component and the femoral prosthetic component, the bearing member having a first surface operable to articulate with the femoral bearing surface; preparing a graft to operably connect the tibia and the femur; operably interconnecting the tibia and the femur with said graft, such that said graft intersects a knee articulating region; wherein operably interconnecting the tibia and the femur further includes; forming a recess in the femur; forming a recess in the tibia; placing a first portion of said graft in said femur recess; and placing a second portion of said graft in said tibial recess. - View Dependent Claims (24, 25)
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28. A method of replacing the articulating knee portion of a femur and a tibia comprising the steps of:
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resecting an end portion of the tibia; resecting an end portion of the femur; attaching a tibial prosthetic component corresponding to the resected end portion of the tibia, the tibial prosthetic component defining a bearing surface and a tibial clearance; attaching a femoral prosthetic component corresponding to the resected end portion of the femur, the femoral prosthetic component defining a bearing surface; installing a bearing member between said tibial prosthetic component and said femoral prosthetic component, the bearing member defining a bearing clearance and having a first surface operable to articulate with the femoral bearing surface; preparing a graft to operably connect the tibia and the femur; and operably interconnecting the tibia and the femur and intersecting a knee articulating region with said graft. - View Dependent Claims (29, 30, 31)
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32. A knee joint prosthesis for replacing the articulating portion of a femur and a tibia and allowing for the replacement of soft tissue, comprising:
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a femoral component adapted to be secured to the distal end of the femur and having a femoral bearing surface; a tibial component adapted to be secured to the proximal end of the tibia and having a tibial surface; and a bearing member having a first bearing surface operable to articulate with the femoral bearing surface and a second surface to be positioned adjacent said tibial bearing surface; wherein each of said femoral component, tibial component, and bearing member are adapted to allow a graft to connect the femur to the tibia and intersect a knee articulating region. - View Dependent Claims (33, 34, 35)
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Specification