Patent ID: 7527631

Claim:
A gauge for measuring bone contour of a bone for use in joint arthroplasty, said gauge comprising: a body including a body contact portion thereof for contact with the bone, said body contact portion comprises a hemispherical concave surface wherein the hemispherical concave surface is configured to contact bone during use of the gauge, wherein said body further includes a hemispherical concave surface located at the apex of the generally cylindrical portion; and a probe, movably positionable with respect to said body and sized and shaped to fit within the generally cylindrical portion of the body, said probe including a probe contact portion such that when the probe is received within the generally cylindrical portion, the probe contact portion contacts an outer contour of the bone, the relative position of said probe with respect to said body being indicative of a contour of the bone; wherein the relative position of the probe with respect to the body is used to determine a particular size of a prosthesis appropriate for the measured contour of the bone.