In many cases when the knee is injured, a ligament in the knee becomes strained or torn. Ligaments are fibrous tissue connecting bone to bone; they give strength and stability to joints. The ACL, or Anterior Cruciate Ligament, is a ligament in the center of the knee that becomes damaged when twisted too far, such as in a skiing accident or some sport that requires rapid rotation or pivoting.
If you'd like more information about ACL injuries, watch the video below.
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