“…In the case of bone diseases, this technique is now proving to be an invaluable means of assessing painful traumatic and non traumatic disorders (such as hip dysplasia, knee trauma and stress fracture of the tibia). Cases where it is necessary to search for an intra articular joint effusion, an infectious periosteal apposition or a tumoral resurgence in contact with a stainless steel prosthesis or, more recently, for a traumatic ligament lesion, are just a few examples where the use of ultrasound is highly indicated (Falcini et al 2000;Rand et al 2001;Enns et al 2004;Halaba and Pluskiewicz 2004;Mayr et al 2004;May et al 2004). X-ray computed tomography, magnetic resonance imaging and/or bone scintigraphy, the other widely used methods available (Baert and Sartor 2002), have various disadvantages, depending on the type of examination for which they are used, such as their cost, the fact that they involve X-rays or require sedation and their lack of availability and accessibility.…”