Snapshot A 22-year-old man presents to student health with severe knee pain. He was in soccer practice where an opposing team member struck his right leg laterally. He has developed pain since the event. On physical exam, anterior and posterior drawer test are negative. He has increased laxity with valgus stress and no laxity with varus stress to the knee. Introduction Collateral ligaments of the knee include the login to view 2 more bullets Function login to view 5 more bullets Epidemiology Incidence login to view 1 more bullet ETIOLOGY Pathogenesis login to view 4 more bullets Presentation Symptoms login to view 1 more bullet Physical exam login to view 2 more bullets Imaging Radiography login to view 2 more bullets Studies Making the diagnosis login to view 1 more bullet Differential Anterior cruciate ligament tear login to view 2 more bullets Posterior cruciate ligament tear login to view 2 more bullets Treatment Conservative login to view 3 more bullets Operative login to view 3 more bullets Complications