Related Experiment Video
Updated: Aug 17, 2026

Biotribological Testing and Analysis of Articular Cartilage Sliding against Metal for Implants
Published on: May 14, 2020
Ten-year results of a press-fit, porous-coated acetabular component
G P Grobler1, I D Learmonth, B P Bernstein
1Princess Alice Orthopaedic Unit, Groote Schuur Hospital, Cape Town, South Africa. garth.grobler@vincentpallotti.com
Abstract:
We retrospectively reviewed, ten years after surgery, 100 consecutive total hip replacements in which the Duraloc 300 cup had been used. Post-operative radiographs were analysed for placement of the cup and interface gaps and follow-up radiographs for lucent lines, osteolysis, wear and migration. All the components were found to be stable with no evidence of loosening. The mean rate of wear was 0.12 mm/year. Three hips developed acetabular osteolysis at the level of the apex hole. Two have successfully undergone bone grafting without removal of the implants and one patient is awaiting surgery. The Duraloc 300 cup has a survival of 100% at ten years with no aseptic loosening and a low incidence of pelvic osteolysis.
