Punch, implant and associated method

Abstract

A method of performing joint arthroplasty includes preparing a flat surface on a long bone, providing an instrument having a body and a punch extending from the body, the punch including a portion thereof having a shape similar to a stem of an implant, positioning a stop on the flat surface, rotating the stop with respect to the surface of the long bone based upon an indicia on one of the body and the stop so as to position the punch rotationally with respect to the surface to a desired orientation when the instrument is at least partially inserted into the stop, using the instrument to form a cavity in the long bone with the punch at the desired rotational orientation with the instrument inserted at least partially within the stop, the cavity having a shape similar to the stem of the implant, and implanting the stem into the cavity.

Dependencies are inferred from the claim text.