Introduction.- Foreword.- FIRST PART.- The concept of press-fit: a system of implants.- Preliminary Remarks.- Choice of a Concept and an implant.- The concept of press-fit. Principles characteristics of an implant with press-fit fixation.- The PFM-revision system.- Modular Femoral Prostheses for Revision.-Implants and Ancillary.- Conclusions of the first part.- Why make these choices?.- SECOND PART.- Pre-operative planning.- Radiological analysis of the femur.- Determining a surgical strategy.- Making a pre-operative template.- Third part.- Surgical technique.- General considerations.- Option 1: femoral flap.- Fixation in the diaphysis.- Option 2: endofemoral approach.- Proximal fixation.- Post-operative care.- Conclusions.- Asembly of the stem in two stages.- Removal of the pfm-revision stem.- FOURTH PART.- The results.- Patients and type of operation.- Clinical results.- Preoperative radiological results.- Postoperative radiological results.- The complications, limitations and indications of the concept of 3press-fit fixation.- Conclusions.- Bibliography.