Osgood Schlatter disease is the most common cause of knee pain in active, adolescent boys. Symptoms include pain and swelling, just below the knee at the top of the Tibia and gets worse with exercise.
Osgood Schlatter disease is thought to be caused by small injuries caused by repeated overuse before the knee area has finished growing. When adolescents experience a growth spurt, the long bones grow first and the muscles gradually adapt to the new length. However, during this period of adaptation the muscles become tight and pull on the tibial tuberosity causing swelling and pain. This tightness may lead to muscle imbalances that can alter the forces on the leg.
Physiotherapy can help to address this muscle imbalance and give advice on management.