[Contribution of echography in the course and treatment of acute osteomyelitis].

In a series of 43 cases of acute hematogenous osteomyelitis, the ultra sound (US) allowed the diagnosis and the accurate localisation of the sub periosteal abscess. The early surgical treatment of the sub periosteal abscess since its nascent or, at least, before its rupture into the soft parts, changes completely the development of the illness and reduces considerably the chronicity forms. This early surgical treatment allows also to isolate rapidly the germ and to test its sensitiveness to antibiotics, which insures a better effectiveness to the medical treatment.