What is synovitis?

Synovitis is a type of arthritis that causes hip pain and limping. It occurs in children prior to the onset of puberty and usually resolves on its own.

Symptoms

• Hip pain (one side only)

• Limp

• Thigh pain, in front and toward the middle

• Knee pain

• Low-grade fever

Diagnosis

Toxic/transient synovitis is diagnosed only after more serious conditions have been ruled out. Exams can include an ultrasound or X-ray of the hip, a complete blood count and in some cases, a bone scan and aspiration of hip joint fluid.

Treatment

Children can limit activity to ease pain or soreness but may engage in normal activities as they like. Nonsteroidal anti-inflammatory medications may be prescribed to reduce pain. Generally the hip pain goes away in seven to 10 days. For persistent or more severe cases, your doctor may recommend a hip arthroscopy to remove the inflamed tissue.