PETER GARDINER / SCIENCE PHOTO LIBRARY PETER GARDINER / SCIENCE PHOTO LIBRARY
Knee replacement. Artwork of a profile view of a prosthetic knee joint. The prostheses are implanted into the thigh bone (femur) and shinbone (tibia). The artificial joint hinges in an identical way to a normal knee joint. Knee joints need replacing when the protective cartilage that surrounds them is lost. Cartilage can be lost due to injury or osteoarthritis.
Model release not required. Property release not required.