Knee replacement, also called knee arthroplasty or total knee replacement, is a surgical procedure to resurface a knee damaged by arthritis. Metal and plastic parts are used to cap the ends of the bones that form the knee joint, along with the patella( kneecap). This surgery may be considered for someone who has severe arthritis of knee.Various types of arthritis may affect the knee joint.The commonest being Osteoarthritis - a degenerative joint disease that affects mostly middle-aged and older adults, may cause the breakdown of joint cartilage and adjacent bone in the knees. After the procedure- After the surgery you will be taken to the recovery room for observation. Once your blood pressure, pulse, and breathing are stable and you are alert, you will be taken to your hospital room. Knee replacement surgery usually requires an in-hospital stay of 4-5 days. UNICONDYLAR KNEE ARTHRPLASTY - Although most candidates for Total Knee Arthroplasty are over the age of 60 years,Unicondylar Knee Replacement can be performed on younger patients who are relatively incapacitated by their knee damage. Good candidates include patients who do not suffer from rheumatoid arthritis, whose arthritis is localized to one specific area of the knee, and whose ligaments are in good condition. To determine whether a unicondylar knee arthroplasty is the best course of treatment for a particular patient, the doctor performs a physical examination to evaluate precisely which area of the knee is producing the pain. Imaging tests are also conducted, including X-rays and MRI scans(if required) to detect the precise location of cartilage damage and its severity.