ANTONIA REEVE / SCIENCE PHOTO LIBRARY ANTONIA REEVE / SCIENCE PHOTO LIBRARY
Knee replacement surgery. Close-up of an operation being carried out to replace an artificial knee joint that failed due to an obese patient's weight. Here, a surgeon is inserting the new 'hinge' femoral implant component. The other component of the artificial knee inserts into the tibia bone. A retractor (upper left) is being used to pull back layers of skin and fat (yellow). For a sequence showing an X-ray and photographs of the operation, see images C014/7729 to C014/7735.
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