Generally, congenital anomalies affect the lateral meniscus, most commonly a discoid meniscus, although discoid medial menisci can occur much less frequently. We will review the common meniscal variants, which include hypoplastic menisci, absent menisci, anomalous insertion of the medial meniscus, discoid lateral meniscus, including the Wrisberg variant, and discoid medial meniscus.
We had an MRI done, and it was revealed that she had a discoid lateral meniscus but no evidence it was torn. The medial meniscus is intact. The ligaments are
The J Bone Joint Sur 1997;73(B)6:932-935; Darin Davidson, Merv Letts, Rob Glasgow. Discoid meniscus in children: treatment and outcome. Can J Surg. 2003; 46(5 Discoid meniscus is an abnormal meniscus that is thicker than normal and has a different shape and texture that usually affects the lateral meniscus of the knee 1).
The authors describe 29 discoid menisci imaged by means of MR. A discoid meniscus was said to be present if three or more 5-mm 2011-12-01 · Discoid lateral meniscus tends to manifest as hypermobility (snapping knee) as of childhood, without tear, whereas discoid medial meniscus is asymptomatic in childhood until revealed by tear. The ultrastructure of discoid menisci differs from that of normal menisci ; this difference in collagen fiber organization and the stress redistribution 2019-08-22 · Discoid lateral menisci were first described in the late 1800s. The normal configuration of a meniscus is that of a matured crescent moon, whereas that of a discoid meniscus generally is a thickened, very early crescent moon. MRI findings with arthroscopic correlation for tear of discoid lateral meniscus: comparison between children and adults. 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. Discoid Meniscus Injuries.
Can J Surg.
THE DISCOID LATERAL MENISCUS (DLM) is an anatomic variant of the meniscus, in which the meniscus is thickened and discoid shaped, and the DLM covers a …
6, 7 Discoid menisci are markedly more Discoid menisci are a congenital meniscal variant commonly seen in the lateral compartment, with sporadic reporting of medial cases. It is reported to be present bilateral in up to 20% of patients. There is thought to be abnormal meniscal composition and altered knee kinematics causing increased incidence of tears and instability in the meniscus. Arthroscopy confirmed the discoid abnormality of the medial menisci.
radiological diagnosis was realized by means of X-ray SPECT-bone scan. All Objectives: The authors report their experience in treating discoid menisci.
School of Mar 31, 2020 Department of Radiology, Tripler Army Medical Center, Honolulu, Hawaii, Ipsilateral medial and discoid menisci are incredibly rare and one On sagittal imaging, the body of the lateral meniscus is normally only seen on two Dec 1, 2016 Kim et al. assessed the mid-term clinical and radiological outcomes of discoid lateral meniscus treated by partial or total meniscectomy and Feb 11, 2013 The meniscus is a cushion structure made of cartilage which fits within the knee joint The discoid meniscus occurs due to abnormal development and ACL Tears Radiological Evaluation - Everything You Need To Kno IIPhD, MD, Radiologist, Professor of Radiology at Faculdade de Medicina de Keywords: Knee; Discoid meniscus; Anatomic variants; Magnetic resonance Dec 19, 2013 Deutsch A.L.. Discoid meniscus of the knee: MRI imaging appearance. Radiology . 1989; 173: 351-354. Discoid meniscus is a congenital abnormality of the lateral compartment of the Radiologic OA is significantly more severe in the subtotal/total meniscectomy Search for: WHAT WOULD YOU LIKE TO SEE. ARTHRITIS RADIOLOGY RHEUMATOLOGY IMAGING 7; ELBOW 13.
Discoid meniscus is seen more frequently in children and adolescents; thus, some authors suggest it may regress in maturity. Etiology
The MRI findings of the Wrisberg variant encompass those of a discoid lateral meniscus, which include a specific measurement of the left-to-right width of the meniscus at the center of the body greater than 15 mm on a coronal slice (reference average, 12.8 mm) [3, 4]. Alternatively, a discoid lateral meniscus shows more than two meniscal body segments on consecutive sagittal images of the knee. Healthy menisci are shaped like crescent moons (in fact, "meniscus" comes from the Greek word for crescent). A discoid meniscus is thicker than normal, and often oval or disc-shaped. It is more prone to injury than a normally shaped meniscus.
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Author information: (1)Department of Orthopaedic Surgery.
Diagnosing DM on MR imaging has clinical and surgical implications.
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Discoid lateral meniscus is one of the most common knee problems in clinical practice. Several radiographic findings have been reported to screen discoid lateral meniscus, but the diagnostic value of those signs varies.We introduce a new method of measurement on plain radiograph for initial screenin …
MRI sequences showed that there is a complete discoid lateral meniscus. The meniscal tissue is Conclusions: Discoid medial menisci are a rare cause of medial knee pain and should be con- sidered if classic MRI findings are associated with mechanical discoid meniscus may range from complete disc to a ring shaped meniscus; MRI: - suggestive finding include meniscal tissue on 3 or more contiguous [Meniscus Pitfalls_01] Discoid meniscus (including Wrisberg variant), Hypermobile lateral meniscus. 사용자 MSK MRI 2020. 1.
19 Mar 2020 An x-ray series of the left knee is normal. MRI sequences showed that there is a complete discoid lateral meniscus. The meniscal tissue is
Although frequently asymptomatic, discoid menisci are prone to cystic degeneration with Pathology. Discoid menisci have decreased collagen fibers and loss of normal collagen orientation, which predisposes Radiographic features. Radiographs may well The most prominent distinguishing features of discoid lateral meniscus on plain radiographs include widening of the lateral joint space and a high fibular head.
Discoid meniscus is a rare human anatomic variant that usually affects the lateral meniscus of the knee. Usually a person with this anomaly has no complaints; Discoid meniscus - Imaging pearls. Courtesy: Dr Venkatesh M, Shades of Radiology. Post Views: 631 Discoid Lateral Meniscus. Courtesy: Prof Nabil MRI Appearance of Wrisberg Variant of Discoid. Lateral Meniscus.