One may require either a total or a partial knee replacement depending upon the condition of the knee joints. In Total Knee Replacement (TKR) surgery, both sides of the knee joints are replaced with artificial implants. This is usually performed when the joint is severely damaged by Osteoarthritis, Rheumatoid Arthritis, and Post-traumatic Arthritis or due to Vascular Necrosis. In a normal joint, the joint surface is covered by cartilage that provides a smooth articulating surface that allows for smooth movement within the joint, whereas in arthritic joint the cartilage is gradually worn out which causes the bones to rub against one another leading to pain and restricted range of motion. The goal of the surgery is to relieve pain and restore the normal functioning of the joint. Total Joint Replacement can be performed through two approaches: conventional approach or minimally invasive approach. In the conventional approach, an incision is made over the affected joint. The arthritic part of the joint is removed and prepared to receive the artificial components. The artificial components are fixed in place and the muscles and tendons are then repaired and the skin is closed. It normally has a longer recovery time due to more amount of bone cutting and the risk of damage to supporting structures and soft tissue. With advancements in technology, a minimally invasive approach has been developed in recent years where surgery is performed through smaller incisions. With the help of technology, the precision has improved and there is a higher grade of accuracy. Advantages of the newer approach are lesser soft tissue damage, preserved bone, ligaments, and soft tissue, minimal pain, quicker recovery, and faster rehabilitation of the patient. With newer technologies, the operative time has also reduced and on average it takes around 1-1.5 hours for the whole procedure.