Cement Removal with the ROBODOC System in Total Hip Arthroplasty Stem – Revision

In the case of aseptic or septic loosening of a cemented femoral component in a total hip arthroplasty (THA), the old stem, including the complete cement has to be removed (5). After removal of the prosthesis, which usually can be performed without any problems, two distinct portions of cement remain in the cavity (Fig. 20–1). In the area of the prosthesis usually a relatively thin layer of cement can be found. Underneath the tip of the prosthesis a solid cement plug remains. The removal of proximal parts of the cement mantle is easy whereas distal mantle parts and the cement plug often constitute more complex problems.