Meniscus lesion

Lesion Grade 0
Normal meniscus.

Lesion Grade I
One or more signal changes point without continuity with the articular surface. (degenerative)

Lesion Grade II
Linear signal change without extension to the articular surface. (degenerative+/-traumatic)

Lesion Grade III
Change signal linear extension to the joint surface. (rupture)

Lesion Grade IV
Fragmentation, possible dislocation.
Sag MRI

Meniscus lesion articular surface SAG MRI


Lesion Grade 0Lesion Grade 1Lesion Grade 2Lesion Grade 3Lesion Grade 4
Normal meniscusOne or more signal changes point without continuity with the articular surface. (degenerative)Linear signal change without extension to the articular surface. (degenerative+/-traumatic)Change signal linear extension to the joint surface. (rupture)Fragmentation, possible dislocation

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