Severe wear from retrieved alumina-on-alumina coupled implant: A case report

S. Affatato, A. Sudanese, L. Brizio, S. Squarzoni, A. Toni

Research output: Contribution to journalArticlepeer-review

Abstract

This study details the in vivo wear behavior of an alumina acetabular cup and a femoral head on a retrieved non-cemented hip prosthesis. A commercial alumina ceramic-on-ceramic prosthesis was retrieved from a patient previously treated for bilateral hip arthrosis in "coxa profunda". Massive wear was found on the retrieved alumina ceramic head and acetabular cup. The total measured penetration depth was 1.9 mm while the total calculated weight loss for the acetabular cup was 6.06 g. The study underlines the head-cup instability caused by cup loosening as major cause of severe ceramic wear.

Original languageEnglish
Pages (from-to)655-662
Number of pages8
JournalInternational Journal of Artificial Organs
Volume24
Issue number9
Publication statusPublished - 2001

Keywords

  • Ceramic acetabular cup
  • Ceramic femoral head
  • Massive ceramic wear
  • Shadowgraphic measurements
  • Volumetric wear

ASJC Scopus subject areas

  • Biophysics

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