Patent ID: 7481842

Claim:
An implant system comprising: a prosthesis having a prosthesis body and an arcuate rib extending therefrom, said arcuate rib defining a first radius of curvature; a guide body dimensioned to correspond to a portion of said prosthesis, said guide body having an arcuate guide surface; and an instrument having a counter-surface corresponding to said guide surface of said guide body and a web extending from said instrument, said web corresponding to said arcuate rib of said prosthesis, said web having a radius of curvature substantially equal to said first radius of curvature of said rib, said counter-surface of said instrument and said guide surface of said guide body operable to repeatably couple said instrument to said guide body by arcuately passing said counter-surface along an arcuate path defined by said arcuate guide surface, wherein the position of said web relative to said guide body replicates the position of said rib of said prosthesis relative to said prosthesis body when said instrument is coupled to said guide body.