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Important information for patients - Dr. Capeci and RYC Orthopaedics have moved into a beautiful new office on the Upper East Side. The new office is located at 55 East 86th Street, #1A, New York, NY 10028. The phone number is 212-348-3636; all prior phone and fax numbers will continue to work as well. Dr. Capeci will be seeing patients exclusively in this location and his office hours will continue to be on Tuesdays and Thursdays, replacing both prior locations. Please pardon our appearance and any confusion that comes with this transition. Please call the office with any questions or concerns. Dr. Capeci looks forward to welcoming you to our new space! Thank you.

What is Hip Synovitis?

Hip synovitis, also called transient hip synovitis or toxic synovitis, is a condition characterized by inflammation of the synovial tissues that surround the hip joint. It is the most common cause for sudden hip pain that occurs in young children between the age of 2 and 9. It affects boys more commonly than girls and is most of the time limited to only one side of the hip.

Symptoms of Hip Synovitis

The symptoms of hip synovitis manifest over a period of 1 to 3 days and gradually resolve within the next few days. The most common symptom is pain around the hip or groin region. Your child may limp while walking or may find it difficult to walk. Sometimes, your child has a low-grade fever or complains of pain in the inner thigh or knee.

Causes of Hip Synovitis

The exact cause of hip synovitis is unknown, but some theories suggest a history of trauma to the hip or a recent viral infection such as an upper respiratory tract infection, bronchitis or middle ear infection.

Diagnosis of Hip Synovitis

To diagnose hip synovitis, your child’s doctor will initially examine your child’s hip, knee, and other joints and check whether there is pain during passive movement of the joints. Your doctor may order diagnostic tests such as ultrasound imaging and blood tests to assess inflammatory markers. If the inflammatory markers are high, then your doctor may order a culture test of the fluid within the joint. To perform the culture test, joint fluid is collected by inserting a needle into the hip joint and aspirating the fluid. This is then sent to the lab for evaluation.

Treatments for Hip Synovitis

The treatment for hip synovitis includes simple home remedies such as rest, application of heat and massage over the painful area. Anti-inflammatory medications will be prescribed to reduce the pain and other symptoms. Weight-bearing on the affected side should be avoided until pain is resolved.