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Double contrast arthrography in the study of knee meniscal lesions



Double contrast arthrography in the study of knee meniscal lesions



Rays 11(3): 39-44



The authors performed a statistical study on a series of 300 patients, all examined with double-contrast fluoroscopically controlled knee arthrography and by qualified arthrographers, in which the arthrographic diagnoses were subsequently compared with arthrotomic diagnoses (153 cases) and arthroscopic diagnoses (102 cases), or with clinical diagnoses with a follow-up of 6 months on 45 patients. In this series the arthrographic diagnoses, performed on patients who had a history of "recurrent meniscal injury", were confirmed in a high percentage of cases (288/300). We found an accuracy of 96.1%, a sensitivity for tears of 94.3% and a specificity of 99.1%. The false negatives were very few (3.7%) as were the false positives (0.3%). Sources of error in performing and interpreting knee arthrograms are discussed, because normal anatomic structures and technical factors can simulate tears in most areas of both the medial and lateral menisci. On the basis of these very encouraging results the authors again suggest double-contrast arthrography as a highly accurate examination of considerable value in the diagnosis of meniscal lesions.

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Accession: 005194059

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PMID: 3602463


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