Fig. 2From: Diagnosis and treatment of rotatory knee instabilityA magnetic resonance imaging of a medial meniscus root tear in conjunction with an anterior cruciate ligament tear. The white arrows point to the meniscus root as it enters its insertion on the tibia. On the top images (a and b), there is fluid underneath the root with no clear attachment to the tibia. The bottom image (c) demonstrates no clear attachment of the root to the tibiaBack to article page