The knee is one of the most flexible and busiest parts of the human body. Though, it is also vulnerable to many outside damages. Now if your knee is sternly damaged from any kinds of outside force or arthritis then you may need a total knee replacement surgery. Having a partial or total damaged knee will make your life difficult by reducing knee movement. A simpler task will be much difficult for you. In this type of scenario, it is better to consult a doctor or orthopaedic who will put your knee through some tests and may suggest a total knee replacement. Knee arthroplasty or replacement follows some steps in the surgery. The doctor will go through four major points to complete the surgery. The primary step includes, first the surgeon will remove the damaged cartilage exteriors then the tibia and femur will be removed respectively along with the bones in a small amount. Then the surgeon will replace the removed bone and cartilage with the metal implants. After that, they will cut the kneecap and replace it with a plastic component. Now the third step depends on the surgery and the condition of the knee. Not all doctors follow it. And at last, a top-notch high-quality medical grade space made in plastic is implanted between those metal components so the patient can experience a smooth surface.