Osgood-Schlatter's disease, or Anterior Tibial Apophysitis, is the most common cause of pain affecting the tibial tuberosity in young athletes.
This pathology, of micro-traumatic origin, is due to an inflammation of the patellar tendon at the tibial tuberosity. It is probably linked to traction of the patellar tendon on the periosteum, which causes a diffuse necrosis on the apophyseal joint. It usually affects athletes between the ages of 10 and 15, especially when they are going through growth spurts. Sports that require a lot of leaps and jumps (such as gymnastics, athletics, football, basketball and dance) are more likely to incur this condition. It affects boys more often than girls, and in 25% of cases there is a bilateral localization.