System for articular surface replacement
First Claim
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1. A system comprising:
- a guide comprising a body portion including;
a top surface;
a bone-facing surface configured to contact an articular surface of a bone;
a first opening extending through said body portion configured to establish a reference axis extending outward from said articular surface; and
a second opening extending through said body portion configured to establish a first working axis extending outward from said articular surface; and
one or more reamers configured to rotate about and advanced along said reference axis and along said first working axis to define a first and a second generally circular cutting path centered around said reference axis and centered around said first working axis, respectively;
wherein said first and second openings are aligned with respect to each other such that said first generally circular cutting path partially overlaps with said second generally circular cutting path to form a first and a second partially overlapping excision site in said articular surface centered around said reference axis and said first working axis, respectively.
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Abstract
A system for replacing a portion of an articular surface including providing an implant site and installing an implant into the implant site. The implant site includes a first and a second excision site which at least partially intersect with one another. Each of the first and second excision sites are formed by providing a respective axis and excising a portion of the articular surface relative to the respective axes.
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Citations
30 Claims
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1. A system comprising:
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a guide comprising a body portion including; a top surface; a bone-facing surface configured to contact an articular surface of a bone; a first opening extending through said body portion configured to establish a reference axis extending outward from said articular surface; and a second opening extending through said body portion configured to establish a first working axis extending outward from said articular surface; and one or more reamers configured to rotate about and advanced along said reference axis and along said first working axis to define a first and a second generally circular cutting path centered around said reference axis and centered around said first working axis, respectively; wherein said first and second openings are aligned with respect to each other such that said first generally circular cutting path partially overlaps with said second generally circular cutting path to form a first and a second partially overlapping excision site in said articular surface centered around said reference axis and said first working axis, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification