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Osgood-Schlatter disease is a painful swelling of the bump on the upper part of the shinbone, just below the knee. This bump is called the anterior tibial tubercle.
Osgood-Schlatter disease is thought to be caused by small injuries due to repeated overuse before the knee area is finished growing.
The quadriceps muscle is a large, strong muscle on the front part of the upper leg. When this muscle squeezes (contracts), it straightens the knee. The quadriceps muscle is an important muscle for running, jumping, and climbing.
When the quadriceps muscle is used a lot in sports activities during a child's growth spurt, this area becomes irritated or swollen and causes pain.
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 painful swelling over a bump on the lower leg bone (shinbone). Symptoms occur on one or both legs.
The area is tender to pressure, and swelling ranges from mild to very severe.
Your doctor can tell if you have this condition by performing a physical exam.
A bone x-ray may be normal, or it may show swelling or damage to the tibial tubercle -- a bony bump below the knee. X-rays are rarely used unless the doctor wants to rule out other causes of the pain.
Osgood-Schlatter disease will almost always goes away on its own once the child stops growing.
In many cases, the condition will get better using these methods.
Adolescents should be allowed to play sports if the activity does not cause too much discomfort. However, symptoms will improve faster if activity is kept to a minimum. Sometimes, a child will need to take a break from most or all sports for 2 or more months.
In the rare case where symptoms do not go away, a cast or brace may be used to support the leg until it heals. This typically takes 6 - 8 weeks. Crutches may be used for walking to keep weight off the painful leg.
Rarely, surgery may be needed.
Most cases get better on their own after a few weeks or months. Most cases eventually go away once the child finished growing.
Call your health care provider if your child has knee or leg pain, or if pain does not get better with treatment.
The small injuries that may cause this disorder are usually unnoticed, so prevention may not be possible. Regular stretching, both before and after exercise and athletics, can help prevent injury.
Wells L, Sehgal K. Osgood-Schlatter Disease. In: Kliegman RM, Behrman RE, Jenson HB,Stanton BF, eds. Nelson Textbookof Pediatrics. 19th ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 669.4.