Important to identify this slightly less common tear of the root of the lateral meniscus - Wrisberg rip: longitudinal tear in the posterior horn of the lateral meniscus that extends laterally from the Wrisberg ligament attachment.

The Wrisberg rip should be differentiated from the normal appearance of the so-called Wrisberg pseudo-tear: a vertical/oblique signal intensity region at the junction of the meniscofemoral ligament (most commonly the ligament of Wrisberg) with the posterior horn of the lateral meniscus. When seen on only one or two sagittal slices, this represents a pseudo-tear that is thought to be caused by a volume averaging of the ligament connection with the meniscus. It can also be seen on multiple slices depending on the angle of insertion of the meniscofemoral ligament.