A TOOL SYSTEM FOR REMOVING PROSTHETIC CEMENT FROM A BONE OF A PATIENT UNDERGOING A JOINT PROSTHESIS REPLACEMENT OPERATION

摘要

A method for providing a tool system for removing prosthetic cement (2) from a bone (1) of a patient (7) undergoing a joint prosthesis replacement operation, comprising the steps of: scanning the patient in the area of the joint prosthesis (3) so as to obtain at least one profile of a line of intersection of a prosthetic cement/ bone interface at its intersection with a generally longitudinally pre- selected plane; providing a guide member (4) substantially shaped as a stem of the prosthesis in a prosthetic cavity located in said prosthetic cement; providing a cutting tool (5) for forming a running cut substantially completely through the prosthetic cement along the line of intersection; wherein a stem (51) of the cutting tool comprises two laterally extending protrusions (55, 56), which protrusions are located along the length of the stem at a mutual distance apart; and wherein the guide member is provided with two longitudinally running grooves (41, 42) which each engage one of said protrusions of the cutting tool, wherein the grooves are profiled such that the outer end of the stem at which a cutting element is arranged to cut the prosthetic cement, when inserted into the prosthetic cavity and being moved to at least substantially to the bottom end thereof, is forced to follow a path corresponding to the profile of the line of intersection of the cement/bone interface.