Arthrographic study of painful total hip arthroplasty: Refined criteria

T. P. Maus, T. H. Berquist, C. E. Bender, J. A. Rand

Research output: Contribution to journalArticle

47 Scopus citations

Abstract

The criteria for a diagnosis of loosening or infection of hip arthroplasties on arthrographic study were further refined by a retrospective review of 178 arthrograms representing 170 patients. The 97 arthroplasties that were surgically evaluated form the basis of this report. With the refined criteria, subtraction arthrography had a sensitivity of 96% and specificity of 92% for demonstrating loosening of the femoral component and a sensitivity of 97% and a specificity of 68% for demonstrating loosening of the acetabular component. Pseudocapsule size and the presence of bursae were important factors influencing arthrographic interpretation. Arthrographic findings of pseudocapsule irregularity and the presence of nonbursal cavities were suggestive of infection but were not sensitive or specific. Laboratory evaluation of aspirated material was a more reliable predictor of infection, although its sensitivity was only 71%.

Original languageEnglish (US)
Pages (from-to)721-727
Number of pages7
JournalRadiology
Volume162
Issue number3
DOIs
StatePublished - Jan 1 1987

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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