Rodríguez RCL, Harfush NA, Cassis ZN, Fernández TS

Language: Spanish
References: 0
Page: 9-17
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ABSTRACT

This article describes the Magnetic Resonance Imaging criteria of unstable meniscal tears and also represents the most common pitfalls in meniscal tears, some of the most frequent are normal anatomic variants. A retrospective review of 497 standard consecutive MR images realized within a year, 348 men and 149 women. Arthroscopy was performed in 4.9% of the patients. The criteria for unstable meniscal tears have been recently described, those are: a) displacement of a meniscal fragment, b) extensive meniscal tear (10 mm or more), c) meniscal tear with more than one orientation or pattern (irregular in contour, meniscal separation or a meniscal tear) and d) tear showing high signal on T2. Magnetic Resonance images showed the menisco-femoral ligaments in 33.2% of the patients, frequency similar to the reported by other authors; the frequency of the oblique menisco-meniscal ligament was 0.8% (4 patients), less than the reported in the literature. Magnetic Resonance Imaging can show many of the essential characteristics of a meniscal tear, including type, location and extension. It is important to demonstrate MRI normal characteristics of the menisci as much as recognizing the most common normal variants.