Evaluation of the postoperative meniscus at the knee: A study comparing conventional arthrography, conventional MR imaging, MR arthrography with iodinated contrast material, and MR arthrography with gadolinium-based contrast material

Robert L. Sciulli, Robert D Boutin, Robert R. Brown, Khanh D. Nguyen, Claus Muhle, Nittaya Lektrakul, Mini N. Pathria, Robert Pedowitz, Donald Resnick

Research output: Contribution to journalArticle

74 Scopus citations

Abstract

Objective. To compare four imaging methods in the evaluation of the postoperative meniscus: conventional arthrography, conventional MR imaging, MR arthrography with iodinated contrast material, and MR arthrography with gadolinium-based contrast material. Design and patients. Thirty-three patients referred for knee MR examinations with a history of meniscal surgery were studied prospectively. At the first patient visit, conventional MR examination was followed by an MR arthrogram with gadolinium-based contrast material. At the second visit, a conventional arthrogram with iodinated contrast material was followed immediately by an MR examination. Imaging examinations were interpreted by a masked reader, and then compared with the results of repeat arthroscopic surgery in 12 patients. Results. The correct evaluation of the status of postoperative menisci was allowed in 12 of 13 patients (92%) by MR arthrography using gadolinium-based contrast agent, 10 of 13 patients (77%) by conventional MR examination, 9 of 12 patients (75%) by MR arthrography, and 7 of 12 patients (58%) by conventional arthrography. Conclusion. Intra-articular fluid is advantageous in the evaluation of patients with a suspected meniscal retear. MR arthrography with gadolinium-based contrast material is the most accurate imaging method for the diagnosis of meniscal retears.

Original languageEnglish (US)
Pages (from-to)508-514
Number of pages7
JournalSkeletal Radiology
Volume28
Issue number9
DOIs
StatePublished - Sep 1999
Externally publishedYes

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Keywords

  • Arthrography, knee
  • Arthroscopic surgery, knee
  • Meniscus
  • MR arthrography, knee
  • MR imaging, knee

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

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