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Knee pop after injury

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Sound and feeling after knee injury - did the patient feel or hear a 'pop' or 'shift' in the knee?

  • a 'pop' classically occurs with rupture of the anterior cruciate ligament (ACL) (1)

    a 'shift' can occur with ACL rupture or patella dislocation (2)

1. Heard W. et al. Anterior cruciate ligament tears for the primary care sports physician: what to know on the field and in the office. Phys. Sportsmed. 2015 Nov;43(4):432-9.

2. Domnick C. et al. Biomechanics of the anterior cruciate ligament: Physiology, rupture and reconstruction techniques. World J Orthop. 2016 Feb 18; 7(2): 82–93.




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