from the conferences organized by TANGER Ltd.
One of the most frequently performed orthopaedic procedures in Poland and in the world is hip arthroplasty. Correct placement of the implant in the bone tissue and initially positive postoperative results do not determine the durability and effectiveness of the above method of treatment. The durability of an arthroplasty depends on many biological and biomechanical factors, and their importance in the process of creating aseptic loosening of implants is still being analyzed. Significant conditions results, among others, from the construction and mechanical properties of implants. In this study, the subject of the study was the cementless acetabular cup of the endoprosthesis hip joint removed from the body due to the need for revision surgery. The surface of the deimplanted cementless acetabular cup of the hip joint was analyzed after 3 years of implant exploitation using stereoscopic microscope OLYMPUS SZ61 and scanning electron microscope JEOL JSM-6610 LV, the chemical composition was analyzed using scanning electron microscope with an EDS type X-ray microanalyzer, phase composition on a SEIFERT T-T X-ray diffractometer. The reason for the removal of the cementless acetabular cup was its loosening, which occured due to the fracture of cementless acetabular cup without displacement of fractions. The solution of the clinical problem was to replace cementless acetabular cup with a cemented acetabular cup. Macroscopically, no signs of osseointegration process were found on the porous surface of the deimplanted cementless acetabular cup.
Keywords: Revision operations, hip arthroplasty, cementless acetabular cup, implant, microstructure© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.