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The anterior cruciate ligament:
The normal ACL appears on MRI as a band of hypointense signal, stretched between the femur and the tibia. Its limits are clear.
The main objective of this study was to present a synthesis of the current literature in order to provide a useful tool for clinicians in radiological analysis of the meniscus. The magnetic resonance imaging (MRI) is the most accurate and least invasive for the diagnosis of meniscal tears. This technique has revolutionized the imaging of the knee and has become the "gold standard" for imaging the meniscus. It confirms and characterize the meniscal lesion, type, extension, its possible association with a cyst meniscal extrusion, assessment of cartilage and subchondral bone. All anatomical descriptions were clearly illustrated in this articleby MRI, arthroscopic and / or drawings. We also described standard radiography for differential diagnosis as osteoarthritis. Ultrasound is often used as a diagnostic tool for meniscal pathology. CT arthrography with multiplanar reconstructions can detect some cracks not visible meniscus on MRI. CT arthrography is also useful in case of against-MRI in the postoperative evaluation of meniscal sutures or for analysis cartilage covering the articular surfaces.
MRI is the most accurate and least invasive method for the diagnosis of meniscal tears.New 3D MRI in three dimensions with isotropic resolution allow creating multiplanar reformatted images to obtain from an acquisition in one sectional plane, reconstructions in other spatial planes. 3D MRI should further improve the diagnosis of meniscal tears
This article describes MRI imaging of all meniscal lesions.