Transfer of metallic debris after dislocation of ceramic femoral heads in hip prostheses.

Introduction: Main reasons for the early revision of total hip arthroplasties are aseptic loosening as a result of wear debris caused by polyethylene particles, and postoperative dislocations. In revision arthroplasty of the hip metallic deposits were frequently found on femoral heads after dislocation or repositioning in total hip arthroplasties with metal back acetabular components.

Materials And Methods: In this study we examined ceramic femoral heads from alumina-on-alumina and alumina-on-polymer pairings, respectively.