MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY
Pinned elbow fracture, coloured X-ray. Metal screws (green) and a metal plate (pale blue) have been surgically implanted to pin a fracture (red) in the upper arm bone (humerus). The pinning is needed to hold the bone fragments together in the correct alignment as the bone heals. The elbow (centre) is the joint where the humerus joins to the two lower arm bones (radius and ulna, lower right). A row of surgical staples (purple/white) runs over the elbow, used to join the wound made when inserting the pins and plate. For X-rays of the elbow before pinning and from a different angle, see images M330/1065 and M330/1067.
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