Flap tear

Last revised by Dr David Luong on 27 Jul 2021

A flap tear is a type of meniscal tear that commonly comprises of a displaced flap fragment. 

  • horizontal tears can give rise to flap tears, which can be classified as superior or inferior when displaced. Superior flaps arise from the superior surface of the meniscus and inferior flaps from the inferior surface.
  • oblique tears could also give rise to flaps which are mechanically unstable and that are associated with mechanical symptoms 2
Location

Flap tears occur six to seven times more frequently in the medial meniscus 3

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Cases and figures

  • Figure 1: annotated images
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  • Case 1: displaced horizontal flap tear
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  • Case 2
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  • Case 3
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  • Case 4
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  • Case 5: inferiorly displaced
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  • Case 6: displaced flap tear of the medial meniscus
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