You and your doctor may consider knee replacement surgery if you have a stiff, painful knee that makes it difficult to perform even the simplest of activities, and other treatments are no longer working. This surgery is generally reserved for people over age 50 who have severe osteoarthritis.
What Happens During Knee Surgery?
Once you are under general anesthesia (meaning you are temporarily put to sleep) or spinal/epidural anesthesia (numb below the waist), an 8- to 12-inch cut is made in the front of the knee. The damaged part of the joint is removed from the surface of the bones, and the surfaces are then shaped to hold a metal or plastic artificial joint. The artificial joint is attached to the thigh bone, shin and knee cap either with cement or a special material. When fit together, the attached artificial parts form the joint, relying on the surrounding muscles and ligaments for support and function.
What Are Recent Advances in Knee Surgery?
Minimally invasive surgery has revolutionized knee replacement surgery as well as many fields of medicine. Its key characteristic is that it uses specialized techniques and instruments to enable the surgeon to perform major surgery without a large incision.