ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Partial knee replacement. Coloured X-ray of the knees of a 58-year-old patient who has undergone partial knee replacement (knee arthroplasty) surgery to replace both knee joints, showing the prosthetic implants (white). Knee replacement is a surgical procedure to replace the weight-bearing surfaces of the knee joint to relieve pain and disability.
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