Osgood-Schlatter disease is a painful swelling of the bump on
the front, upper part of the lower leg bone. This bump is called
the anterior tibial tubercle. Causes, incidence, and risk
factors: Osgood-Schlatter disease is thought to be caused by
small, usually unnoticed, injuries caused by repeated overuse
before growth of the area is complete. The disorder is seen most
often in active, athletic adolescents, usually between ages 10
and 15. It is common in adolescents who play soccer, basketball,
and volleyball, and who participate in gymnastics. Osgood-
Schlatter disease affects more boys than girls. The main symptom
is a painful swelling just below the knee on the front
(anterior) surface of the lower leg bone. Symptoms occur on one
or both legs. The person may have leg pain or knee pain , which
gets worse with running, jumping, and climbing stairs. The area
is tender to pressure, and swelling ranges from mild to very
severe. Signs and tests: Your doctor can tell if you have this
condition by performing a phy