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This is an archived page which is no longer updated.
Please visit the main page to look for a current version |
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Meniscal Tear Classification / Treatment
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Flap Tear
- Radial tear with extention circumferentially creating a flap of meniscal tissue.
- note red-red(within 3mm of meniscosynovial juntion) vs red-white(3mm-5mm from meniscosynovial junction) vs white-white(>5mm from meniscosynovial junction)
- Generally unrepairable
- Treatment = partial meniscectomy with preservation of normal meniscus.
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Radial Tear
- Generally unrepairable because the circumferential hoop fibers are disrupted and the majority of the tear is avascular.
- Often related to trauma.
- note red-red(within 3mm of meniscosynovial juntion) vs red-white(3mm-5mm from meniscosynovial junction) vs white-white(>5mm from meniscosynovial junction)
- <3mm in depth do not require treatment.
- >3mm in depth = partial meniscectomy with preservation of normal meniscus..
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Longitudinal
- Ideal tear for repair is a longitudinal tear within the peripheral 3mm with a length of 1-2cm.
- Often related to trauma.
- note red-red(within 3mm of meniscosynovial juntion) vs red-white(3mm-5mm from meniscosynovial junction) vs white-white(>5mm from meniscosynovial junction)
- Stable longitudinal tears <5mm in length and that displace <3mm do not require treatment.
- Treatment = repair.
- Medial femoral condyle
- Medial capsule
- Longitudinal medial meniscal tear
- Medial mensicus
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Bucket Handle
- Generally repairable especially if associated with an ACL tear.
- Often related to trauma.
- Treatment = repair.
- Medial Femoral Condyle (MFC)
- Lateral wall of MFC
- Body of Medial meniscus flipped into the notch
- Anterior horn of medial meniscus
Bucket Handle Meniscal Tear MRI
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Horizontal cleavage
- More likely preesisting / degenerative
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Complex / Degenerative
- Combination of other tears occuring in multiple planes.
- More common in older patients.
- Often in posterior horn.
- Generally unrepairable
- Treatment = partial meniscectomy with preservation of normal meniscus.
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Discoid Meniscus
Meniscal Root Avulsion
- synonyms: posterior horn medial meniscal avulsion, meniscal root tear
- Treatment: arthroscopic repair via bone tunnels. (Marzo JM, JAAOS 2009;17:276).
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