Dislocation rates with combinations of anti-protrusio cages and dual mobility cups in revision cases: are we safe?

This retrospective study included all patients in whom a Burch–Schneider cage and a dual mobility cup were implanted in our department between 2007 and 2014 and who had a minimum follow-up period of 24 months. Implantation of the Burch–Schneider cage was indicated in cases of extensive cup base defects and an unstable caudal cup edge. All patients who had to receive a tumor prosthesis or push-through prosthesis due to a defect situation in the shaft area, or who were undergoing surgery due to a malignant disease, were excluded.