Cut guide attachment for use in tibial prosthesis systems
First Claim
1. A system for performing a surgical procedure on a portion of a knee joint, the system comprising:
- a provisional tibial prosthesis system implantable on a first resected surface of a proximal tibia and comprising at least a tibial base plate and a tibial bearing component attachable to the tibial base plate and at least one shim that includes a first shim having a first shim height, wherein the tibial bearing component and the tibial base plate are separated by a first distance equal to the first shim height; and
a cut guide removably attachable to the tibial prosthesis system configured to facilitate further resection of the proximal tibia.
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Accused Products
Abstract
Tibial prosthesis systems for implantation or use in a knee joint are disclosed. A tibial prosthesis system for implantation on a resected tibia can include a bearing component, a base component, and a shim component. The insertion of the shim component can provide spacing adjustment between the bearing and base components. The shim component can have a generally uniform height or thickness, or a variable height. A cut guide attachment, removably attachable to the prosthesis system, can be used to facilitate further resection of the tibia and create one or more additional resection surfaces on the tibia at an angle relative to the first resection surface. Multiple cut guide attachments can be available to the user to provide various resection angles. The cut guide attachment can include a modular design. The cut guide attachment can be configured to adjust the angle of the subsequent resection in at least one direction.
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Citations
19 Claims
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1. A system for performing a surgical procedure on a portion of a knee joint, the system comprising:
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a provisional tibial prosthesis system implantable on a first resected surface of a proximal tibia and comprising at least a tibial base plate and a tibial bearing component attachable to the tibial base plate and at least one shim that includes a first shim having a first shim height, wherein the tibial bearing component and the tibial base plate are separated by a first distance equal to the first shim height; and a cut guide removably attachable to the tibial prosthesis system configured to facilitate further resection of the proximal tibia. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for performing a surgical procedure on a portion of a knee joint, the system comprising:
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a provisional tibial prosthesis system implantable on a first resected surface of a proximal tibia and comprising at least a tibial base plate, a tibial bearing component attachable to the tibial base plate and at least one shim slidably receivable between the tibial base plate and the tibial bearing component; and a cut guide removably attachable to the tibial prosthesis system and configured to facilitate further resection of the proximal tibia. - View Dependent Claims (11, 12)
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13. A system for performing a surgical procedure on a portion of a knee joint, the system comprising:
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a provisional tibial prosthesis system implantable on a first resected surface of a proximal tibia and comprising at least a tibial base plate, a tibial bearing component attachable to the tibial base plate and at least one shim slidably receivable between the tibial base plate and the tibial bearing component; and a plurality of cut guides, each cut guide removably attachable to the tibial prosthesis system and having an elongated slot configured to receive a cutting tool for further resecting the proximal tibia to form a second resected surface at an angle relative to the first resected surface. - View Dependent Claims (14, 15, 16)
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17. A method of performing a surgical procedure on a portion of a knee joint, the method comprising:
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resecting a proximal tibia to form a first resected proximal tibia surface; implanting a provisional tibial prosthesis system on the resected proximal tibia surface, the prosthesis system comprising at least a tibial base plate, a tibial bearing component attachable to the tibial base plate and at least a first shim receivable between the tibial base plate and the tibial bearing component; testing a force balance on at least a portion of the knee joint; performing a second resection of the proximal tibia to form a second resected proximal tibia surface, wherein the second resected proximal tibia surface is at an angle relative to the first resected proximal tibia surface, and the second resection is performed using a cut guide removably attachable to the tibial prosthesis system. - View Dependent Claims (18, 19)
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Specification