What is knee Arthritis, why total knee replacement?
Your knee joint is simply the hinge between two bones, the thigh bone (femur) and the shin bone (tibia) whose ends are covered with a thick cushion of soft, white cartilage. Due to wear and tear age or other factors this cartilage begins to wear away and thus the underlying bones rub together causing extreme pain and inflammation. While most arthritic knees are due to degenerative arthritis or osteoarthritis, there are other conditions such as rheumatoid arthritis, trauma, prior surgeries or complications, tumors etc.The pain progresses causing swelling instable stride and also deformity at a later stage.
In total knee replacement surgery, the surface of the joint is replaced with that of a metal or a plastic surface which can function similar to a normal joint. Most of t he supporting ligaments, tendons and muscles around the knee joint are retained. Thus the new joint’s surface mimics that of the natural knee replaced.
What Patients Should Have a Total Knee Replacement?
Total knee replacement is recommended for patients with arthritis who have severe pain and limited function which significantly affects quality of life. The most common reason to have a total knee replacement is to relieve arthritic pain. The pain may not be excruciating at any particular time, but it is often chronic and disabling. Everyone’s pain is different, and the degree of pain sufficient to justify surgery should be decided by the patient and the doctor together.
Painful and arthritic knees can become unstable, causing falls and other injuries. Climbing stairs, getting up from chairs and extended walking can also be difficult. While most arthritic knees are the result of degenerative arthritis or osteoarthritis, other conditions such as rheumatoid arthritis, trauma, prior surgeries, instability and tumors can also be relieved by total knee replacement.
Long-Term Prognosis of this type of a surgery-
Most usually it depends on one individual to another; however with newer materials and techniques, the lifespan of knee replacements continue to rise.