Increasing evidence shows an uptick in incidence of patellar dislocation in young, active patients. Acute, traumatic patellar dislocation injuries peak among adolescents between 15 to 19 years old. These injuries most often occur during sporting activities, with approximately half of patients experiencing patellar dislocation during athletics. The most common sports involved were basketball, soccer, and football.
Additionally, increased rates of patellar dislocation are also seen in subgroups such as active US military personnel.
-Source: Sports Health, published online before print July 21, 2014