Patent ID: 8361159

Claim:
An implant for replacing a portion of an articular surface comprising: a first implant portion defining a first end region of said implant, said first implant portion comprising: a first load bearing surface having a geometry generally corresponding to the original contour of a first portion of said articular surface being replaced, wherein said first portion of said articular surface is centered around a first axis extending outwardly from said articular surface; a first bone facing surface having an overall non-planar geometry which is revolved around said first axis such that said first bone facing surface is generally radially symmetrical about said first axis; and a fixation feature extending outwardly from said first bone facing surface along said first axis; and at least a second implant portion comprising: a second load bearing surface having a geometry generally corresponding to the original contour of a second portion of said articular surface being replaced, wherein said second portion of said articular surface is centered around a second axis extending outwardly from said articular surface; and a second bone facing surface having an overall non-planar geometry which is revolved around said second axis such that said second bone facing surface is generally radially symmetrical about said second axis, wherein said first and said second implant portions partially overlap.