An analysis of Food and Drug Administration medical device reports relating to total joint components

F P Castro1, G Chimento, B G Munn

  • 1Department of Orthopaedic Surgery, Tulane University School of Medicine, New Orleans, LA 70112, USA.

The Journal of Arthroplasty
|November 14, 1997
PubMed

Insights

Medical device reports reveal that component modularity caused many hip complications, while polyethylene wear led to knee issues. Mechanical failures are a growing cause of total joint revision surgery.

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Medical Device Regulation

Background:

  • Total hip and knee arthroplasty are common procedures for joint degeneration.
  • Medical device reporting systems are crucial for post-market surveillance of orthopedic implants.

Purpose of the Study:

  • To analyze medical device reports (MDRs) for total hip and knee arthroplasty from 1984-1993.
  • To identify common causes of device-related complications and total joint revision.

Main Methods:

  • Reviewed 1,717 total hip and 2,769 total knee MDRs submitted to the U.S. Food and Drug Administration (FDA).
  • Categorized complications by device type, component location, and suspected cause.

Main Results:

  • Component modularity was a major source of total hip complications, particularly cementless acetabular components.
  • Accelerated polyethylene wear was associated with 56% of total knee MDRs, with patellar components most affected.
  • Mechanical failure was identified as a common and increasing cause of total joint revision.

Conclusions:

  • Modularity in hip implants and polyethylene wear in knee implants are significant concerns.
  • Underreporting of device-related complications to the FDA is substantial, likely less than 5%.