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Transient means lasting for only a short time. This condition is temporary and in normal cases clears itself in 7 to 10 days. Because the condition can be alarming, you should see a doctor if you witness the signs and symptoms of transient synovitis in your child.
The cause of transient synovitis is unknown. Experts are unclear as to why the synovial membrane that surrounds the hip becomes inflamed.
Transient synovitis is most common in children 2-8 years of age. Boys are affected two to four times as often as girls. It most commonly occurs in children following a viral infection such as an upper respiratory virus.
• Refusal to bear weight
• Hip, groin, and/or thigh pain
• Low grade fever
• Previous viral infection
Transient synovitis is a diagnosis of exclusion, meaning the diagnosis is made once other more dangerous causes of acute hip pain are ruled out. The following tests will be done to rule out other more dangerous causes of hip pain.
• Physical exam
• Blood work (CBC, CRP, ESR)
• Ultrasound of the hip to look for fluid collection
In our Hip Program at Children’s Hospital Colorado, we have orthopedic experts who specialize in pediatric hips. We use x-rays, blood work, ultrasound and a physical examination to determine a diagnosis.
Tests are done to determine whether the hip is irritated and inflamed or infected. All of our x-rays are done during your clinic visit with your provider. Ultrasound is located in radiology and can be done prior to the visit with your doctor. If your doctor orders blood work for your child, it can be completed at the outpatient lab on the main level of the hospital. If these tests are needed, it may take a day of two to get everything completed for your doctor to make a diagnosis.
Transient synovitis is a temporary condition that will clear itself in 7-10 days. In the meantime it is important for your child to rest his hip and take anti-inflammatory medications like ibuprofen or naproxen as prescribed by your doctor.