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Related Experiment Videos

Prosthetic component failures in hip arthroplasty surgery

D A Heck1, C M Partridge, J D Reuben

  • 1Department of Orthopedic Surgery, Indiana University, Indianapolis 46202-5111, USA.

The Journal of Arthroplasty
|October 1, 1995
PubMed
Summary

Total hip arthroplasty device failures are uncommon but vary by component. This study surveyed surgeons on their experience with over 60,000 hip replacements, detailing failure rates for different prosthetic parts.

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Area of Science:

  • Orthopedic Surgery
  • Biomaterials Science
  • Medical Device Engineering

Background:

  • Device-related failures in total hip arthroplasty (THA) can impact patient outcomes and healthcare costs.
  • Understanding the incidence and types of THA failures is crucial for improving implant design and surgical techniques.

Purpose of the Study:

  • To survey the membership of the American Association of Hip and Knee Surgeons regarding their experience with THA device-related failures.
  • To determine the frequency and types of failures associated with various THA components over a 5-year period.

Main Methods:

  • A survey was distributed to the entire membership of the American Association of Hip and Knee Surgeons.
  • Respondents reviewed their preceding 5-year clinical experience, reporting on over 60,000 hip arthroplasties.

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  • Data collected included component types, failure modes (e.g., fracture, wear, dissociation), and revision rates.

    • Main Results:

    • Complete polyethylene failure rates were 29/10,000 for metal-backed sockets and 239/10,100 for all-polyethylene sockets.
    • Modular acetabular dissociation occurred at a rate of 15/10,000 THAs.
    • Femoral stem fractures were reported at 27/10,000, and ceramic head fractures at 22/10,000.

    Conclusions:

    • The overall risk of catastrophic prosthetic THA failure is low.
    • Failure rates vary significantly depending on the specific hip component (e.g., acetabular socket, femoral stem) and manufacturer.
    • Further analysis of component-specific and manufacturer-specific data is warranted to identify areas for improvement in THA devices.