The Anterior Cruciate Ligament, or ACL, provides the knee the ability to do activities that require high degrees of cutting, pivoting, and accelerating. Once the ligament is torn, the knee is largely rendered unable to perform these types of activities. Learn more about ACL injuries, how they are diagnosed and treated, what to expect if you need surgery, and about the typical timeline for recovery from ACL surgery. Host: Eric Chehab, MD | Guest: David Guelich, MD | Executive Producer: Nick Sarantakis | Executive Producer: Maggie Sketch | Music by: The Young XP