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. Minimally invasive knee joint replacement requires a much smaller incision, 3to5 inches, versus the standard approach and incision. The smaller, less invasive approaches result in less tissue damage by allowing the surgeon to work between the fibers of the quadriceps muscles instead of requiring an incision through the tendon. It may lead to less pain, decreased recovery time and better motion due to less scar tissue formation.
The average hospital stay after knee joint replacement is usually three to five days. The vast majority of people who undergo knee joint replacement surgery have dramatic improvement. This improvement is most notable one month or more after surgery. The pain caused by the damaged joint is relieved when the new gliding surface is constructed during surgery.
After knee joint replacement, people are standing and moving the joint the day after surgery. At first, you may walk with the help of parallel bars, and then a walking device -- such as crutches, walker, or cane -- will be used until your knee is able to support your full body weight. After about six weeks, most people are walking comfortably with minimal assistance. Once muscle strength is restored with physical therapy, people who have had knee joint replacement surgery can enjoy most activities (except running and jumping).
Hip replacement surgery is a procedure in which a doctor surgically removes a painful hip joint with arthritis and replaces it with an artificial joint often made from metal and plastic components. It is usually done when all other treatment options have failed to provide adequate pain relief. The procedure should relieve a painful hip joint, making walking easier.
The doctor removes the ball portion of the joint by cutting the thigh bone with a saw. Then an artificial joint is attached to the thigh bone using either cement or a special material that allows the remaining bone to attach to the new joint.