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Related Experiment Videos

Acetabular options.

Merrill A Ritter1

  • 1Center for Hip and Knee Surgery, 1199 Hadley Road, Mooresville, IN 46158, USA.

The Journal of Arthroplasty
|May 6, 2003
PubMed
Summary
This summary is machine-generated.

Cemented acetabular components show high failure rates, while cementless options reduce loosening but increase wear. Modern techniques achieve low failure rates, but cementing feasibility remains a concern due to radiolucent lines.

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Area of Science:

  • Orthopedic surgery
  • Biomaterials science
  • Prosthetics engineering

Background:

  • Cemented acetabular components have historically demonstrated failure rates between 10% and 23%.
  • Advancements in cement technology have not significantly improved the longevity of cemented prostheses.
  • Cementless technology has largely resolved issues of prosthesis loosening, but wear has emerged as a significant challenge.

Purpose of the Study:

  • To evaluate the current failure rates and technical feasibility of cemented acetabular components.
  • To compare the outcomes of cemented versus cementless acetabular technologies in hip arthroplasty.
  • To identify areas for improvement in prosthetic design and surgical techniques.

Main Methods:

  • Review of historical data on cemented acetabular component failures.

Related Experiment Videos

  • Analysis of current cementless hip arthroplasty outcomes, focusing on wear.
  • Assessment of the incidence of radiolucent lines in cemented acetabular components, even with experienced surgeons.

    • Main Results:

    • Modern cemented acetabular components with compression-molded polyethylene and no radiolucent lines exhibit a failure rate below 1%.
    • Despite advancements, cementing remains technically challenging, with experienced surgeons encountering radiolucent lines in at least 10% of cases.
    • While cementless prostheses minimize loosening, polyethylene wear presents a new primary concern.

    Conclusions:

    • Current cemented acetabular techniques can achieve very low failure rates under specific conditions.
    • The technical feasibility of cementing remains questionable due to the persistent issue of radiolucent lines.
    • Development of superior bearing surfaces is crucial to enable widespread adoption of cementless technology in hip arthroplasty.