Proximal tibial fractures in pediatric patients are relatively rare. Of all long bone fractures at this age, they represent only 1.8%, and of all physeal fractures, 0.6–2.1%. Fifty percent occur as a result of sports accidents and are more frequent in adolescents. Most cases correspond to Salter-Harris type II injuries, followed by type III injuries. Fractures of the proximal tibia may involve the proximal physis or metaphysis. Metaphyseal fractures usually occur in children between 3 and 6 years and may be incomplete (“greenstick” or “torus”) or complete. In adolescents, physeal fractures are more frequent, especially those involving the anterior tuberosity of the tibia and are associated with sports trauma. “Cozen phenomenon,” a progressive valgus after a proximal tibia osteotomy, is a common cause of consultation, and parents should be aware of this in advance.