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. At centre right is the 'hinge' femoral implant component, with the 'tray' tibial implant component (white) to its right. A surgeon is using a tool (left) to remove the femoral implant. The implants are surrounded by 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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