Horizontal tears
- Typically degenerative
- Parameniscal cyst formation indicating chronicity (takes a while to form parameniscal cyst)
- Potential partial meniscectomy
Vertical tears
- Typically traumatic
- High association with ACL tear
- Potential meniscal repair
Radial tears
- Either traumatic or degenerative.
- Meniscal extrusion.
- Conservatively managed. except for an acute root tear.
1-3 illustrations
Case 4: Horizontal/Oblique tear lateral meniscus.
Discoid meniscus.
horizontal/oblique tear lateral meniscus
associated parameniscal cyst anterior root = chronic.
Note: It takes a while for a tear to develop a parameniscal cyst.
Case 5: Horizontal flap tear. - tends to be degen
Displaced into the inferior tibial recess.
Implication to surgeons - sometimes they may not see the inferior diaplaced tears on arthroscopy when they see just the normal free edge.
Case 6: Longitudinal tear posterior horn of lateral meniscus tend to be traumatic.
with wrisberg rip
Case 7: Bucket handle tear.
Double PCL sign. SAG
Fragment in the notch sign. COR
Case 8: Radial tear. ghost meniscus
Case 9: medial meniscus posterior root tear
Root attachment is also quite vascular can heal
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