Meniscal Tears: Role of Axial MRI Alone and in Combination with Other Imaging Planes
Nefise Cagla Tarhan1,2,
Christine B. Chung1,
Aurea Valeria Rosa Mohana-Borges1,
Tudor Hughes1 and
Donald Resnick1
1 Department of Radiology, VA Medical Center, University of California San
Diego, 3350 La Jolla Village Dr., San Diego, CA 92161.
2 Present address: Department of Radiology, Baskent University, Faculty of
Medicine, Ankara, Turkey.
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Fig. 1A. —66-year-old man with radial tear of lateral meniscus. Axial
fat-saturated fast spin-echo proton density–weighted image (TR/TE,
2,717/54; slice thickness, 4 mm) of right knee shows well-defined linear
increased intensity (arrow) in body of lateral meniscus starting from
free edge.
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Fig. 1B. —66-year-old man with radial tear of lateral meniscus. Coronal
fat-saturated fast spin-echo proton density–weighted image (3,750/60;
slice thickness, 4 mm) shows tear as vertical defect in body of lateral
meniscus (arrow).
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Fig. 2A. —62-year-old man with bucket-handle tear of medial meniscus.
Axial fat-saturated fast spin-echo proton density–weighted image (TR/TE,
2,717/54; slice thickness, 4 mm) of right knee reveals thinning and
irregularity of medial meniscus body with bucket-handle component
(arrows) extending from anterior to posterior.
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Fig. 2B. —62-year-old man with bucket-handle tear of medial meniscus.
Bucket-handle tear (arrow) is shown on coronal fat-saturated fast
spin-echo proton density–weighted image (3,267/60; slice thickness, 4
mm).
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Fig. 3A. —54-year-old man with osteoarthritis and chondromalacia with
misinterpretation of axial images for lateral and medial menisci. Sequential
axial fat-saturated fast spin-echo proton density–weighted images
(TR/TE, 2,700/54; slice thickness, 4 mm) of right knee show medial and lateral
menisci as intact.
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Fig. 3B. —54-year-old man with osteoarthritis and chondromalacia with
misinterpretation of axial images for lateral and medial menisci. Sequential
axial fat-saturated fast spin-echo proton density–weighted images
(TR/TE, 2,700/54; slice thickness, 4 mm) of right knee show medial and lateral
menisci as intact.
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Fig. 3C. —54-year-old man with osteoarthritis and chondromalacia with
misinterpretation of axial images for lateral and medial menisci. Coronal
fat-saturated fast spin-echo proton density–weighted image (3,767/60;
slice thickness, 4 mm) shows tear (arrow) of lateral meniscus as
tapering and increased intensity.
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Fig. 3D. —54-year-old man with osteoarthritis and chondromalacia with
misinterpretation of axial images for lateral and medial menisci. Sagittal
spin-echo proton density–weighted image (2,167/30; slice thickness, 4
mm) shows tear (arrow) on body of medial meniscus as vertical
defect.
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Fig. 4A. —45-year-old woman with anterior cruciate ligament tear with
false-positive interpretation of lateral meniscus tear. Axial fat-saturated
fast spin-echo proton density–weighted image (TR/TE, 2,717/54; slice
thickness, 4 mm) of right knee shows linear increased signal intensity
(arrow) in anterior horn of lateral meniscus thought to be tear.
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Fig. 4B. —45-year-old woman with anterior cruciate ligament tear with
false-positive interpretation of lateral meniscus tear. Coronal fat-saturated
fast spin-echo proton density–weighted image (3,750/60; slice thickness,
4 mm) shows meniscus is intact.
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Copyright © 2004 by the American Roentgen Ray Society.
