LaPrade classification system of meniscal root tears

Last revised by Henry Knipe on 28 Sep 2021

The LaPrade classification system of meniscal root tears characterizes meniscal root tears based on morphology. The system was originally conceived based on arthroscopy 1,2

Usage

It has to be emphasized that this is a primarily arthroscopic classification system, however, the same morphological changes can be often appreciated on MRI too, thus facilitating prompt management 3

Classification

  • type 1: partial, stable root tear
  • type 2: complete radial tear within 9 mm from the bony attachment of the meniscal root
  • type 3: bucket handle tears with detachment of the meniscal root 
  • type 4: complex/oblique tears with complete root detachment
  • type 5: bony avulsion fracture of the meniscal root 

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