The value of contrast arthrography in assessing loosening of symptomatic uncemented total hip components

Robert L. Barrack, Michael Tanzer, Susan V. Kattapuram, William H. Harris

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

Twenty-five patients with symptomatic uncemented total hip components were studied with contrast arthrography prior to surgical exploration. All but one had uncemented femoral stems and 16 had an uncemented acetabular component. As judged by the findings at surgery, on the femoral side the sensitivity, specificity, and accuracy of arthrography were 57%, 60%, and 58% respectively. There was a relatively high incidence of both false positives (17%) and false negatives (25%). On the acetabular side sensitivity, specificity, and accuracy were 29%, 89%, and 62.5%. False negatives were common (31%), while there was only one false positive. The results in this small series show that arthrography has distinct limitations in identifying the fixation status of uncemented total hip components.

Original languageEnglish
Pages (from-to)37-41
Number of pages5
JournalSkeletal Radiology
Volume23
Issue number1
DOIs
StatePublished - Jan 1 1994
Externally publishedYes

Keywords

  • Arthrography
  • Total hip replacement
  • Uncemented loosening

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