MASSIMO BREGA, THE LIGHTHOUSE / SCIENCE PHOTO LIBRARY MASSIMO BREGA, THE LIGHTHOUSE / SCIENCE PHOTO LIBRARY
Prosthetic knee joint. The shaft of the knee joint at left will be placed in a hole drilled in the femur (thigh bone). The shaft of the knee joint at right will be placed in a similar hole drilled in the tibia (shin bone). This is a hinge joint which also allows a degree of rotation, imitating the mobility of the natural joint. Prosthetic knee joints are used to replace joints that have become stiff and painful as a result of arthritis or injury. Knee replacements can dramatically improve knee joint mobility, and can offer years of independence. The artificial components can, however, loosen with time.
Model release not required. Property release not required.