The most prominent distinguishing features of discoid lateral meniscus on plain radiographs include widening of the lateral joint space and a high fibular head. 12,14,15 Additionally, marginal osteophytes and cupping or flattening of the lateral tibial plateau may be revealed. 15 MRI has been shown to be effective in the diagnosis of discoid lateral meniscus.

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S. Ohlerth. 1 Section of Small Animal Radiology, University Crues JW, Radiology, 1987. Takeda Y, JBJS-B, 1998. 0. 10 radial tears lateral meniscus.

[ 12 ] The Asian population has a slightly higher rate of occurrence; Tokyo's Teishin Hospital reported that 16.6% of all knees examined arthroscopically had a discoid lateral meniscus. Discoid meniscus 䡧On sagittal images, a continuous bow-tie appearance on 3 or more 4 mm slices (12 mm) 䡧Up to 2 mm higher than the opposite meniscus Try to figure out what is going on with this meniscus. Then continue reading. At first impression this looks like a tear within a discoid meniscus. At closer look you will notice that the horizontal structure has a lower signal intensity than the meniscus and looks funny. This is a normal variant caused by a vacuum phenomenon. Dr. Ebraheim’s educational animated video describes Discoid meniscus.

The Wrisberg variant of the discoid lateral meniscus is a rare condition with a highly suggestive clinical history. The musculoskeletal radiologist should consider this diagnosis whenever a discoid lateral meniscus is identified because making this elusive diag-nosis may prove immensely useful for the orthopedic surgeon.

A meniscus is a crescent-shaped fibrocartilaginous structure that partly divides a joint cavity, unlike articular discs, which completely separate the cavity. Menisci are present in the knees and the acromioclavicular, sternoclavicular, and temporomandibular joints. A … The Wrisberg variant of the discoid lateral meniscus is a rare condition with a highly suggestive clinical history. The musculoskeletal radiologist should consider this diagnosis whenever a discoid lateral meniscus is identified because making this elusive diag-nosis may prove immensely useful for the orthopedic surgeon.

discoid meniscus may range from complete disc to a ring shaped meniscus; MRI: - suggestive finding include meniscal tissue on 3 or more contiguous

StatDx. Accessed 1/7/2015. MRI Appearance of Wrisberg Variant of Discoid. Lateral Meniscus Achados sugestivos fortes na ressonância magnética incluem um corpo meniscal engrossado visto em mais de duas fatias contíguas. + 12 principais perguntas In this article is analysed MRI of knee joints of 409 patients and results of 15 knee joint arthroscopic revisions of patients with a discoid lateral meniscus. 9 May 2019 Radiograph of the knee showed widened lateral joint space and medial joint space narrowing. MRI showed increased thickness and flattening of Each discoid meniscus was classified according to the Watanabe classification on the basis of its appearance on magnetic resonance imaging or at the time of.

Jung JY(1), Choi SH(2), Ahn JH(3), Lee SA(4). Author information: (1)Department of Radiology, Chungang University Hospital, Chungang University School of Medicine, Seoul. The discoid meniscus is an anatomical variant of the normal meniscus where it is broader and saucer-shaped. There are variations in incidence in various population groups ranging from 0.4-17% for lateral discoid meniscus and 0.1-3 % for medial discoid meniscus. Ari Youderian, MD, Margaret A. Stull, MD.Discoid lateral meniscus.Applied Radiology. 2008:30-32. Paul M Aichroth, Dipak V Patel et al.
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They should be treated according to the algorithm mentioned earlier, with an understanding that discoid medial menisci are more often stable than discoid lateral menisci, given their typically more robust capsular attachments.

THE DISCOID LATERAL MENISCUS (DLM) is an ana-tomic variant of the meniscus, in which the meniscus is thickened and discoid shaped, and the DLM covers a greater area of the tibial plateau than the normal meniscus.
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A discoid meniscus is a thick, disk-shaped meniscus which is prone to tearing, degeneration, and loss of stability in the knee. A discoid meniscus most commonly affects the lateral meniscus, rarely the medial meniscus. Here, we present a case of an extremely rare medial and lateral discoid meniscus in the ipsilateral knee of a 10-year-old male.

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Discoid menisci are seen far more frequently affecting the lateral meniscus than the medial meniscus, the reported ratio of lateral to medial ranging from 15:1 to 4:1. When present, it is bilateral in 20% of cases. Discoid meniscus is seen more frequently in children and adolescents; thus, some authors suggest it may regress in maturity. Etiology

High-resolution coronal images allowed more graphic depiction of the abnormally wide meniscus. Three cases of discoid medial menisci were diagnosed preoperatively by arthrography. Discoid mensiscus usually occurs on the lateral side of the knee; its pathogenesis is obscure. Discoid Medial Meniscus | Radiology Discoid meniscus is thought to arise secondary to an abnormal inferior fascicular attachment of the posterior horn, resulting in additional central meniscal growth and subsequent discoid configuration. Morphologically, there is poor constriction of the central portion and thickening of the free end. The Wrisberg variant of the discoid lateral meniscus is a rare condition with a highly suggestive clinical history.