Musculoskeletal Diseases 2017-2020 by Juerg Hodler Rahel A. Kubik-Huch & Gustav K. von Schulthess

Author:Juerg Hodler, Rahel A. Kubik-Huch & Gustav K. von Schulthess
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

In view of these significant limitations of conventional MRI in the diagnosis of recurrent meniscal tears in the postoperative knee, direct MR-arthrography has been advocated. On direct MR-arthrography, extension of contrast into the meniscal substance is in keeping with a recurrent meniscal tear. The increased diagnostic accuracy of direct MR-arthrography when compared to conventional MRI particularly holds true in cases of partial meniscectomy where more than 25% of meniscal tissue has been excised and after meniscal repair. In these patients, direct MR-arthrography demonstrates a diagnostic accuracy of 85–92% whilst the diagnostic accuracy of conventional MRI is only 66–80%. In contrast, in cases where less than 25% of the meniscal volume has been resected, direct MR-arthrography and conventional MRI show similar diagnostic accuracy [28, 29].

CT arthrography is a useful alternative in the diagnosis of recurrent meniscal tears demonstrating a sensitivity of 79–100% and specificity of 78–89% [30].

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