DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Pinned broken leg. X-ray of a 56 year old man's pinned broken leg. The tibial plateau, the end of the tibia (shin bone, at right) at the knee, has been immobilised by inserting a metal pin. This is known as internal fixation. It is important that a bone is correctly aligned if it is to heal properly and avoid future complications.
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