[Implantation Technique of a Non-cemented Conical Expansion Socket of the Balgrist Type.]

In the submitted paper the authors describe the principle and technique of implantation of a non-cemented self-expanding socket. On an anatomical model they demonstrate different technical details of implantation and provide a more accurate account of their own surgical technique. They draw attention to the most frequent errors the surgeon may comit. These errors include incorrect centering of the socket, a deep bed in the bone, poor settling of the anchoring portion, incorrect inclination of the socket, lack of verification of primary fixation, erroneous or inadequate application of spongious paste and complete settling of the articular insert. Key words: total endoprosthesis of the hip joint, expanding socket of the hip joint.