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Descriptive lexicon of meniscus tears. Examples of the lexicon applied to various types of meniscus tears are illustrated in the medial compartment body
by a “Radial” tear where the defect is along the radial axis of the meniscus similar to a spoke on a wheel. A variant of this is seen in the medial meniscus
posterior horn where there is a “Parrot Beak” tear that is a combination of a radial tear at the free edge that turns into a vertical tear that propagates along
the circumferential axis of the posterior horn. In the lateral compartment, a horizontal tear is present in the anterior horn that separates the meniscus into a
superior and inferior half. In the inner aspect of the lateral meniscus posterior horn involving its tibial root attachment is a vertical tear that separates the
meniscus into an inner half and an outer half.
Source: Knee MRI, Basic Musculoskeletal Imaging
Citation: Tehranzadeh J, MD. Basic Musculoskeletal Imaging; 2016 Available at: http://mhmedical.com/ Accessed: June 11, 2017
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