The term knee replacement or 'TOTAL KNEE REPLACEMENT' is actually a misnomer. When we hear this word we imagine as if a surgeon will cut the thigh bone (femur), cut the leg bone (tibia) and then fit a hindge like a joint in between. This is a dreadful thought.
The actual procedure is not that dreadful.
The knee replacement procedure is actually the shaving up of the worn out cartilage & replacing it with a metal &plastic as seen in figure below.