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Arthroscopy ACL degrees ACL injury Normal knee anatomy Anterior cruciate ligament (ACL) injury

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Anterior cruciate ligament (ACL) injury

Alternative Names: Cruciate ligament injury - anterior; ACL injury; Knee injury - anterior cruciate ligament (ACL) Symptoms: Early symptoms: A "pop" sound at the time of injury Severe pain Knee swelling within 6 hours of injury Text Continues Below Late symptoms: Knee joint instability Arthritis

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