The different types of meniscal tears are categorized according to the location and extent of the tear. These include:
Frayed edge: In this type, the inner rim of the meniscus has a ragged appearance.
Radial tear: This type of tear occurs as a sharp split which starts along the inner edge of the meniscus extending towards the lateral rim.
Parrot-beak tear: This is an oblique tear of the inner rim of the meniscus which appears curved like a parrot’s beak.
Circumferential tear (Longitudinal tear): This is a tear that occurs along the length of the meniscus.
Bucket-handle tear: This is a tear that goes all the way through the full depth of the meniscus. The handle portion of this type of tear may displace into the rounded end of the thigh bone, where it may cause locking of the knee joint and pain.
Horizontal cleavage tear: This type of tear starts after a minor injury as a horizontal split deep in your meniscus which is followed by degenerative changes in the area of damage. Eventually, the meniscus divides into top and bottom sections.
Flap tear: This type of tear occurs on the surface of the meniscus and creates a flap that moves.