Arthroplasties are performed to improve an individual's quality of life. The most common joint replacements include total knee replacement, total hip replacement, and shoulder replacement. The knee is the largest joint in the body and is essential for walking. The knee includes the lower end of the femur, the upper end of the tibia, and the patella, also known as the patella (“Most Common Types of Joint Replacement Surgery”). During a total knee replacement, the surgeon will remove damaged cartilage from the ends of the femur and tibia and replace it with mental components (“Most Common Types of Joint Replacement Surgery”). According to “Most Common Types of Joint Replacement Surgery,” “a spacer is also inserted between the metal components to allow the joint to slide smoothly.” The hip is also the largest ball and socket joint in the body. During a total hip replacement, the damaged ball of the joint is removed and replaced with a metal piece attached to the bony components. Just like knee replacement surgery, a spacer is placed between the implants to help them slide smoothly (“Most Common Types of Joint Replacement Surgery”). The shoulder is also another example of a ball and socket joint. It is made up of three different bones: the arm bone or the humerus.,