Patent ID: 7896883

Claim:
A method for preparing an implant site in bone, comprising: establishing a first working axis extending from said bone; establishing a second working axis extending from said bone, said second working axis is displaced from said first working axis; creating a first socket in said bone by reaming about said first working axis; creating a second socket in said bone, adjacent said first socket, by reaming about said second working axis; advancing a cannulated drill guide to contact said bone, said cannulated drill guide comprising a cannulated handle and a first arcuate tip section removably coupled to a distal end of said cannulated handle, said first arcuate tip section comprising first and second bone contacting points and a bore aligned with a lumen of said cannulated handle, wherein said first working axis is defined extending from said bone through said bore and said lumen; installing a first guide pin into said bone through said lumen and said bore and along said first working axis; advancing a cannulated bone centering shaft over said first guide pin, said bone centering shaft comprising a cannulated tap portion and a cannulated shaft, a shoulder portion between said tap portion and said shaft, and at least one visual marker on said cannulated shaft; driving said tap portion into said bone to a predetermined depth; advancing a cannulated contact probe over said centering shaft, said contact probe comprising an outrigger extending radially from a cannulated shaft, said outrigger comprising a contact point, and a handle comprising visual measuring indicia configured to align with said visual marker, wherein said visual measuring indicia and said visual marker configured to visually display a depth of said contact point when said contact point is advanced to contact said bone; determining a plurality of depth measurements in at least one plane and determining a curvature based on at least one said depth measurement; and advancing a first reamer over said centering shaft and rotating said reamer about said centering shaft to create said first socket in said bone.