Provisional orthopedic implant with removable guide
First Claim
1. A provisional orthopedic prosthesis for use with a permanent orthopedic prosthesis, said provisional prosthesis comprising:
- a provisional component removably mountable on a bone, said provisional component having a first surface facing inwardly relative to the bone and a second surface facing outwardly relative to the bone, said provisional component having a configuration adapted to assess the fit of the permanent orthopedic prosthesis and moveable through a first range of motion when mounted on the bone; and
a guide element removably attachable to said provisional component at a predefined position on said provisional component, said guide element inhibiting movement of said provisional component through said first range of motion and engageable with a surgical tool wherein said guide element positions the surgical tool at a predefined position relative to said provisional component.
1 Assignment
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Accused Products
Abstract
A provisional orthopedic prosthetic component and a removable guide element. The provisional component may be mounted to a bone prior to fully preparing the bone for receiving a corresponding permanent prosthetic component to preliminarily assess the fit of the permanent prosthetic component. The guide element is then attached to the provisional component. The guide element is engaged with a surgical tool to position the tool for preparing the bone for the permanent prosthetic component. In an alternative embodiment, the provisional component is an assembly of first and second provisional components. After mounting the provisional assembly on a partially prepared bone, the second provisional component is interchanged with a guide element which is mounted on the first provisional component. The guide element is used to position a surgical tool relative to the first provisional component. Both embodiments may be mounted on a distal femur and define a single-condylar shaped projection.
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Citations
29 Claims
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1. A provisional orthopedic prosthesis for use with a permanent orthopedic prosthesis, said provisional prosthesis comprising:
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a provisional component removably mountable on a bone, said provisional component having a first surface facing inwardly relative to the bone and a second surface facing outwardly relative to the bone, said provisional component having a configuration adapted to assess the fit of the permanent orthopedic prosthesis and moveable through a first range of motion when mounted on the bone; and
a guide element removably attachable to said provisional component at a predefined position on said provisional component, said guide element inhibiting movement of said provisional component through said first range of motion and engageable with a surgical tool wherein said guide element positions the surgical tool at a predefined position relative to said provisional component. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A provisional orthopedic prosthesis for use with a permanent orthopedic prosthesis, said provisional prosthesis comprising:
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a provisional component removably mountable on a bone, said provisional component having a first surface facing inwardly relative to the bone and a second surface facing outwardly relative to the bone, said second surface defining an articulating surface, said provisional component having a configuration adapted to assess the fit of the permanent orthopedic prosthesis and moveable through a first range of motion when mounted on the bone; and
a guide element removably attachable to said provisional component at a predefined position on said provisional component, said guide element projecting outwardly from said second surface when mounted to said provisional component and wherein said guide element is engageable with a surgical tool whereby the surgical tool is positionable at a predefined position relative to said provisional component. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A provisional orthopedic prosthesis for use with a permanent orthopedic prosthesis, said provisional prosthesis comprising:
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a first provisional component and a second provisional component, said second provisional component removably attachable to said first provisional component, said first and second components together defining a provisional assembly mountable on a bone, said provisional assembly having a first surface facing inwardly relative to the bone and a second surface facing outwardly relative to the bone, said provisional assembly having a configuration adapted to assess the fit of the permanent orthopedic prosthesis; and
a guide element removably attachable to said first provisional component at a predefined position on said first component, said guide element being engageable with a surgical tool wherein said guide element positions the surgical tool at a predefined position relative to the first provisional component, said guide element and said second provisional component being interchangeably attachable to said first provisional component whereby attachment of one of said second provisional component and said guide element to said first provisional component inhibits attachment of the other of said second provisional component and said guide element to said first provisional component. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A method of preparing a bone for a permanent orthopedic prosthesis, said method comprising:
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removably mounting a provisional component having an articulating surface to the bone;
assessing the fit of the provisional component after mounting the provisional component to the bone including moveably engaging the articulating surface with an opposed surface;
attaching a guide element to the provisional component wherein the guide element projects outwardly from the articulating surface;
engaging a surgical tool with the guide element to thereby position the surgical tool in a predefined location relative to the bone; and
preparing the bone to receive the permanent orthopedic prosthesis using the surgical tool. - View Dependent Claims (23, 24, 25)
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26. A method of preparing a bone for a permanent orthopedic prosthesis, said method comprising:
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removably mounting to the bone a provisional component assembly having a first provisional component and a second provisional component, each of the first and second provisional components defining a portion of an articulating surface;
assessing the fit of the provisional component assembly after mounting the provisional component assembly to the bone including moveably engaging the articulating surface with an opposed surface;
detaching the second provisional component from the first provisional component and attaching a guide element to the first provisional component;
engaging a surgical tool with the guide element to thereby position the surgical tool in a predefined location relative to the first provisional component; and
preparing the bone to receive the permanent orthopedic prosthesis using the surgical tool. - View Dependent Claims (27, 28, 29)
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Specification