DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Knee replacement surgery. The patient's knee has been opened up, cleaned, old bone removed, and the new joint (metal and plastic) attached to the leg bones. Artificial knee joints are used to restore mobility in those whose knees have been injured or affected by severe arthritis. For this joint before the implantation of the artificial knee, see image M551/507. For a series of image from different stages of this operation, see M551/493 - M551/508.
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