IMPLANT FOR CEMENTING INTO BONE, METHOD FOR CEMENTING AN IMPLANT INTO BONE AND PACKAGE FOR IMPLANT

摘要

In this method for cementing an implant into bone by means of an autopolymerising two-component bone cement the implant, in particular the stem of a hip prosthesis is preheated above room temperature prior to its cementing into bone, preferably to at least 43 DEG C. By this method the stem-cement interface is warmer than the bone-cement interface and consequently a stiff cement shell will form first around the stem and the cement will shrink towards the stem and away from the bone. The resulting reduction of porosity at the stem-cement interface improves significantly the fatigue life of the system.