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What is the likelihood of tearing the same ACL twice?

According to a study performed by Russell et al. and published in the British Journal of Sports Medicine, if an individual undergoes a proper rehabilitation protocol and consistently implements the use of a stabilizing brace, he or she has approximately a 6% chance of reinjuring the same anterior cruciate ligament (ACL), as well as a 6% chance of injuring the opposite ACL. Not adhering to a proper rehabilitation protocol carried out by a certified athletic trainer or physical therapist will increase the risk significantly.

(This answer provided for NATA by the King College Athletic Training Education Program.)

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.