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Locking of the knee

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

This is the phenomenon where the patient finds that they are unable to fully extend the knee.

It may occur with:

  • medial shelf syndrome
  • meniscal tear
  • osteochondritis dissecans
  • loose bodies within the joint:
    • fracture of the patella
    • fracture of an osteophyte

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