[Pediatric joint ultrasonography. Aspects of synovial pathology].

Until recently, few articular indications for sonographic imaging have been widely accepted. However, concerns about imaging costs are expanding its role in musculo-skeletal pathology. Valuable diagnosis insight are readily obtained with recently available high frequency transducers. Ultrasound may be utilised following clinical examination as an efficient tool in the diagnosis and follow-up of various synovial disorders. Dynamic studies of articular structures as they move, is a significant advantage over other diagnosis modalities. Ultrasound has proved to be useful in daily practice but still requires protracted learning curve for the operator before he becomes proficient with this method.