A flap tear of the meniscus is a peeling back of part of the one surface of the meniscus.

flap tear of upper surface of meniscus
The flap may be on the upper surface or the undersurface (where it may be missed)


A displaced meniscal tear

These loose flaps may cause intermittent symptoms in the knee. They may also break off and form a 'loose body'.


How the surgeon decides on management.

Types of meniscus tear

Illustrations of the types of tear one might see in the meniscus.



Inferiorly Displaced Flap Tears of the Medial Meniscus MR Appearance and Clinical Significance. Lecas LK, Helms CA, Kosarek FJ and Garret WE. American Journal of Roentgenology, Volume 174, Issue 1.

See also -

eBook on knee meniscus injury

eBook - Knee Meniscus Injury

An easy-to-read ebook explaining all about the various kinds of meniscus injury.