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Patient Education

Our Health Library information does not replace the advice of a doctor. Please be advised that this information is made available to assist our patients to learn about general health issues that may not be related to Ear, Nose and Throat Disorders. Our providers may not see and/or treat all topics found herein

Anterior cruciate ligament (ACL)

The anterior cruciate ligament (ACL) is one of four knee ligaments that connect the thighbone (femur) and shinbone (tibia) and help keep the knee stable. The ACL is inside the knee joint. It helps control rotation and helps keep the tibia from sliding too far forward.