Knee ligament tears are common injuries in athletes and play a prominent role in the field of sports medicine. Single-ligament injuries such as ACL or MCL tears are commonly encountered in cutting and pivoting sports, including soccer, football, basketball, skiing and gymnastics. However, while most ligament tears involve one ligament, high-energy injuries to the knee may result in the rupture of multiple ligaments, including the ACL, MCL, PCL, or posterolateral corner structures (FCL and/or popliteus). For example, motor vehicle accidents, a hard crash on skis or a severe tackle on the football field can all result in complex, multiligament knee injuries with or without a concomitant fracture or knee dislocation. Multiligament knee injuries are complex injuries that require vigilant workup and treatment, with devastating complications if left untreated. This webinar will highlight the workup, diagnosis, treatment, and postoperative management of patients with severe multiligamentous injuries to the knee.