Tibia part for a knee joint prosthesis and a kit with a tibia part of this kind
First Claim
1. A knee joint prosthesis kit adapted to change a mode of operation of a knee joint, the kit comprising a tibia part and a plurality of different guiding elements including at least one configured to be rotationally fixed relative to the tibia part and at least one configured to be rotatable relative to the tibia part;
- the tibia part having a bearing surface for supporting a bearing body and a bore for receiving any one of said guiding elements whereby the bore is configured to optionally mount the selected guiding element therein so that the guiding element is either rotationally fixed or rotatable relative to the tibia part, wherein each selected guiding element, when combined with the tibia part, is designed to provide the knee joint prosthesis with a different mode of operation depending on the selected guiding element.
3 Assignments
0 Petitions
Accused Products
Abstract
A tibia part for a knee joint prosthesis. The prosthesis includes a tibia bearing surface for the support of a bearing body and a bore for the reception of a guiding element. A cut-out for the rear cruciate ligament is provided in the tibia bearing surface and the bore is formed in such a manner that it can, depending on the design of the guiding element, receive the latter either rotationally fixedly relative to the tibia part or rotatably relative to the tibia part.
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Citations
11 Claims
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1. A knee joint prosthesis kit adapted to change a mode of operation of a knee joint, the kit comprising a tibia part and a plurality of different guiding elements including at least one configured to be rotationally fixed relative to the tibia part and at least one configured to be rotatable relative to the tibia part;
- the tibia part having a bearing surface for supporting a bearing body and a bore for receiving any one of said guiding elements whereby the bore is configured to optionally mount the selected guiding element therein so that the guiding element is either rotationally fixed or rotatable relative to the tibia part, wherein each selected guiding element, when combined with the tibia part, is designed to provide the knee joint prosthesis with a different mode of operation depending on the selected guiding element.
- View Dependent Claims (2, 3)
- 4. A knee joint prosthesis kit adapted to change a mode of operation of a knee joint, the kit comprising at least one tibia part having a tibia bearing surface, a plurality of different guiding elements including at least one configured to be rotationally fixed relative to the tibia part and at least one configured to be rotatable relative to the tibia part, at least one bearing body to be supported on the tibia bearing surface, the at least one bearing body including bearing shells on a side that faces away from the tibia bearing surface, at least one femur part including condyles for cooperating with the bearing shells of the bearing body, the tibia part including a bore for receiving any one of the guiding elements, the bore being configured to optionally receive a selected guiding element therein so that the guiding element is either rotationally fixed or rotatable relative to the tibia part.
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11. A method for implanting a knee joint prosthesis comprising preparing the knee joint for implanting the prosthesis, assembling an implant from an implant kit comprising at least one tibia part for the knee prosthesis, at least one femur part for the knee prosthesis, and a plurality of different guiding elements providing the knee prosthesis with a desired mode of operation, the guiding elements including at least one configured to be rotationally fixed relative to the tibia part and at least one configured to be rotatable relative to the tibia part, the tibia part including a tibia bearing surface for supporting a bearing body and a bore for receiving any one of the guiding elements, the bore being configured to optionally receive a selected guiding element therein so that the guiding element is either rotationally fixed or rotatable relative to the tibia part, determining the desired mode of operation for the knee prosthesis, selecting a guiding element which, upon implantation, provides the knee prosthesis with the desired mode of operation, inserting the selected guide element into the tibia part bore, and connecting the selected guiding element to the bearing body.
Specification