[Ultrasound in the detection of foreign bodies in the extremities]

The aim of the investigation was to examine the value of ultrasound in the detection of foreign bodies. In an experimental model fragments of wood, metal and glass placed in meat were all easily detectable with ultrasound. Twenty patients with a suspected foreign body in an extremity were examined. The investigation was inconclusive regarding wood fragments. Metal fragments, visible on X-ray pictures, were difficult to see with ultrasound. Glass fragments were clearly visible with ultrasound technique. With adequate equipment, ultrasound will facilitate the detection and removal of glass fragments in the tissue.