The symptoms of hip cold are typical and therefore easily recognizable. The first symptom is sudden hip pain, most often in the morning when waking up.
When he gets up, the child can, complaining of the hip. Sometimes the pain is not precisely located on the hip, and the child complains of the knee.
Most often, the child has no fever and is in good general condition.
The mobilization of the hip - tested in the doctor - is difficult, especially in abduction (thigh outwards) and internal rotation (hip turned inwards).
A few days before the cold of the hip, it happens that the child has suffered from a rhino-pharyngitis, or an otitis, a gastroenteritis, sometimes a fever ...
Standard hip radiography is usually normal, but it is worthwhile to consider a possible more serious diagnosis. The doctor can confirm the clinical diagnosis by prescribing an ultrasound, which can confirm the joint effusion. An MRI is sometimes proposed, and confirms the effusion and inflammation of the synovium. It also makes it possible to search for a possible other diagnosis.
As the name suggests, transient acute synovitis of the hip is an inflammatory reaction of the synovial membrane that surrounds the joint. This inflammation lasts only five to eight days, in the vast majority of cases. She disappears spontaneously.
If the symptoms described above persist beyond this time, another diagnosis should be sought. Joint puncture and scintigraphy may be prescribed to look for a possible other diagnosis (different from hip cold).