A SURGICAL INSTRUMENT

摘要

An instrument for forming a slot in an exterior surface of an end of a bone and method of use are described. The instrument comprises a body arranged to contact an end of a bone and shaped such that the position of the body relative to a bone axis extending into the end of the bone is controlled. The body defines at least one drill guide arranged such that a drill bit can extend through the drill guide to cut a slot intersecting an exterior surface of the bone at a predetermined trajectory and offset from the bone axis. A method of forming a slot in an exterior surface of an end of a bone includes coupling the body to an end of a bone such that the body contacts the end of a bone and drilling a slot through the drill guide intersecting an exterior surface of the bone at a predetermined trajectory and offset from the bone axis. The method can be used to prepare the end of the bone to receive a resurfacing implant.