• Arch Orthop Trauma Surg · Jan 2000

    Magnetic resonance imaging as a screening procedure to avoid arthroscopy for meniscal tears.

    • J Elvenes, C P Jerome, O Reikerås, and O Johansen.
    • Department of Orthopaedics, University Hospital of Tromsø, Norway. jan@elvenes.com
    • Arch Orthop Trauma Surg. 2000 Jan 1; 120 (1-2): 14-6.

    AbstractThe objective of this study was to evaluate the role of magnetic resonance imaging (MRI) as a screening procedure before arthroscopy of meniscal tears. Forty-one knees in 40 patients underwent MRI and arthroscopy. Compared with arthroscopy, the sensitivity, specificity, positive predictive value and negative predictive value for MRI for the nmedial meniscus were 100%, 77%, 71% and 100%, respectively, while the values for the lateral meniscus were 40%, 89%, 33% and 91%, respectively. The overall accuracy for MRI of the medial and lateral menisci combined was 84%. On the basis of the high predictive value of negative MRI, we conclude that MRI is useful to exclude patients from unnecessary arthroscopy.

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