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Related Experiment Videos

Cementless hemispheric acetabular component in total hip replacement.

D Weber1, L A Schaper, D L Pomeroy

  • 1Clinic of Orthopaedic Surgery and Traumatology, University Hospital, Geneva, Switzerland. danielweber61@hotmail.com

International Orthopaedics
|September 16, 2000
PubMed
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This study evaluated porous-coated hemispheric press-fit cups in total hip arthroplasty over 10 years. Results show a low revision rate for aseptic loosening and wear, with no link between screw fixation and osteolysis.

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Radiology

Background:

  • Total hip arthroplasty (THA) is a common procedure for hip joint degeneration.
  • Porous-coated hemispheric press-fit cups are widely used for acetabular fixation.
  • Long-term outcomes and potential complications like osteolysis require ongoing evaluation.

Purpose of the Study:

  • To assess the long-term clinical and radiological outcomes of porous-coated hemispheric press-fit cups in THA.
  • To evaluate the incidence of aseptic loosening, wear, and osteolysis.
  • To determine if additional screw fixation impacts these outcomes.

Main Methods:

  • A retrospective review of 198 total hip arthroplasties using porous-coated hemispheric press-fit cups.
  • Clinical and radiological assessment of 127 cups at a mean follow-up of 10.6 years.

Related Experiment Videos

  • Analysis of Harris hip scores, revision rates, and evidence of osteolysis.

    • Main Results:

    • A mean Harris hip score of 89.8 was achieved at final follow-up.
    • Three cups (2.4%) were revised for aseptic loosening.
    • Two liners were revised for eccentric wear, and nine patients showed mild or suspected osteolysis. No correlation was found between screw fixation and osteolysis or revision.

    Conclusions:

    • Porous-coated hemispheric press-fit cups demonstrate good long-term clinical outcomes in THA.
    • Aseptic loosening and wear are infrequent complications.
    • Screw fixation does not appear to influence the risk of osteolysis or revision in this cohort.