I was running when I got injured and heard a knee popping sound. What could it be?
If you heard a knee popping sound during injury, there are a number of things it could be. Five possible causes of knee popping including the following:
1. ACL Tear
The ACL is the major ligament in the knee that provides anterior and rotatory stability to the knee. If at the time of injury a pop is heard, swelling occurs within 12 hours and the athlete is unable to finish playing the game there is an 85% chance that the ACL was torn.
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