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Related Experiment Videos

Polyethylene liner cementation into fixed acetabular shells.

Geoffrey F Haft1, Anneliese D Heiner, John J Callaghan

  • 1Department of Orthopaedics, University of Iowa Health Care, Iowa City, Iowa 52242, USA.

The Journal of Arthroplasty
|June 18, 2002
PubMed
Summary
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Cementing a new polyethylene liner into a fixed acetabular shell is a viable solution for worn hip implants. Proper cement-liner interface preparation is crucial for a durable construct with minimal complications.

Area of Science:

  • Orthopedic Surgery
  • Biomaterials Engineering
  • Clinical Research

Background:

  • Femoral head penetration through polyethylene liners is a common issue in cementless acetabular components.
  • This complication necessitates revision surgery or alternative treatment strategies.
  • Cementing a new liner into the existing acetabular shell is a potential conservative approach.

Purpose of the Study:

  • To evaluate the clinical efficacy and mechanical strength of cementing a new polyethylene liner into a fixed cementless acetabular shell.
  • To identify critical factors influencing the success of this reconstructive technique.
  • To assess the morbidity associated with this treatment option.

Main Methods:

  • A clinical series of 17 patients undergoing cement-in liner revision were retrospectively reviewed.

Related Experiment Videos

  • A preliminary mechanical study was conducted to assess the cement-liner interface strength.
  • Failure analysis focused on the cement-liner interface in the clinical case.

    • Main Results:

    • One clinical failure (5.9%) occurred, attributed to the cement-liner interface.
    • Adequate preparation of the cement-liner interface was identified as the most critical factor for mechanical strength.
    • The technique demonstrated potential for a durable construct with low morbidity.

    Conclusions:

    • Cementing a new liner into a fixed cementless acetabular shell is a feasible option for managing polyethylene liner wear.
    • Meticulous preparation of the cement-liner interface is paramount for successful outcomes.
    • This approach offers a durable solution with reduced patient morbidity compared to full component revision.