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May 12, 2021 · Popping sound. If you hear a pop coming from your knee at the time of the injury, it may be a tear. Pain. Severe pain is one of the most common signs of an ACL tear, and it will worsen if you try ...
An ACL injury is a tear or sprain of the anterior cruciate ligament (ACL) — one of the major ligaments in your knee. Ligaments are strong bands of tissue that connect one bone to another. The ACL, one of two ligaments that cross in the middle of the knee connecting the thigh bone (femur) to the shinbone (tibia), help stabilize the joint.
An ACL avulsion occurs when the ACL is torn away from either the femur or the tibia. This type of injury is more common in children than adults. The term anterior cruciate deficient knee refers to a grade III sprain in which there is a complete tear of the ACL. It is generally accepted that a torn ACL will not heal.
