Femoral component wear in retrieved hip prostheses

J Bone Joint Surg Br. 1997 Mar;79(2):331-6. doi: 10.1302/0301-620x.79b2.7217.

Abstract

We retrieved 159 femoral heads at revision surgery to determine changes in surface configuration. Macroscopic wear of the head was observed in three bipolar hip prostheses as a result of three-body wear. There was a considerable change in surface roughness in the internal articulation of bipolar hip prostheses. Roughness in alumina heads was almost the same as that in new cobalt-chromium heads. The annual linear wear rate of polyethylene cups with alumina heads was less than that of cups with cobalt-chromium alloy heads. Polyethylene wear was increased in the prostheses which had increased roughness of the head.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Chromium Alloys
  • Female
  • Follow-Up Studies
  • Hip Prosthesis* / statistics & numerical data
  • Humans
  • Male
  • Microscopy, Electron, Scanning
  • Middle Aged
  • Polyethylenes
  • Prosthesis Design / statistics & numerical data
  • Prosthesis Failure
  • Reoperation
  • Surface Properties
  • Time Factors

Substances

  • Chromium Alloys
  • Polyethylenes