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โœ… Knee MRI Mastery/Chap 1. Meniscus

(Fig 1-B.15) Displaced flap tear into the Popliteal hiatus

by MSK MRI 2024. 1. 28.

https://youtu.be/A0HbFl2NEkE

https://youtube.com/shorts/KHtzDrMSN64

https://youtu.be/nKQsItyKAtM

๐Ÿงฒ MRI Insights: Displaced Flap Tear into the Popliteal Hiatus ๐Ÿฅ

 

๐ŸŒ€ Beyond a Simple Tear:

  • This case isn't just a full-thickness radial tear. It's a displaced flap tear, with a trajectory moving posteromedially due to a tear in the body of the lateral meniscus.
  • Originating from the lateral meniscus's body, the flap tear shifts posteromedially.

๐Ÿ” Flipped Flap Tear:

  • Interestingly, we see a horizontal flap tear that has flipped posteriorly into the popliteus hiatus. 

๐Ÿ“ Popliteus Tendon Involvement:

  • The popliteus tendon sheath might provide a potential space for the displaced lateral meniscus flap tear.
  • The displaced flap tear fragment is noticeable inferior to the lateral joint line and anterior to the popliteus tendon.

 

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