Tibial tuberosity fractures most commonly occur in athletes age 12-16 involved in athletics with either repetitive high force of quadriceps concentric contraction (i.e., jumping) or eccentric contraction on knee extension (i.e., landing, as in this patient). It occurs more often in males than females .
Pearl: In pediatric patients, the ossification center is weaker than the ligament/tendon. A physeal fracture is more common than a ligament/tendon tear. In contrast, older patients are more likely to tear tendons or ligaments in these types of injuries as they are weaker than the ossified bone .