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Related Experiment Videos

Cemented ceramic acetabular component: a 7-year review.

H U Cameron1

  • 1Department of Surgery, University of Toronto, Ont.

Canadian Journal of Surgery. Journal Canadien De Chirurgie
|June 1, 1992
PubMed
Summary
This summary is machine-generated.

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A 7-year review of 30 cemented ceramic acetabular components found nonprogressive lucent zones around the bone. While functioning well, some cup separation indicates a need for design modification to improve cement fixation and pull-out resistance.

Area of Science:

  • Orthopedic surgery
  • Biomaterials science
  • Medical device engineering

Background:

  • Ceramic acetabular components are used in hip replacements.
  • Theoretical advantages of ceramic cups include wear resistance and biocompatibility.
  • Cemented fixation is a common method for implanting acetabular components.

Purpose of the Study:

  • To evaluate the long-term performance and radiographic findings of cemented ceramic acetabular components.
  • To assess the incidence and nature of lucent zones around these implants.
  • To identify potential design limitations and areas for improvement.

Main Methods:

  • A retrospective review of 30 cases involving cemented ceramic acetabular components.
  • Radiographic analysis over a 7-year period to assess component fixation and lucent zones.

Related Experiment Videos

  • Clinical outcome assessment of prosthesis function.

    • Main Results:

    • All components developed a rapidly appearing, nonprogressive lucent zone between cement and bone.
    • Prostheses generally functioned well clinically.
    • Inferior separation between the ceramic cup and cement was observed, suggesting creep and inadequate pull-out resistance.

    Conclusions:

    • Cemented ceramic acetabular components can achieve good short-term function.
    • The development of lucent zones appears to be a common radiographic finding.
    • Design modifications are needed to enhance the mechanical fixation of ceramic cups within the cement to prevent creep and improve pull-out resistance.