The knee joint is among the strongest, largest and most complex joints of the body. Whenever you walk, sit, squat, turn around, drive or perform many other seemingly simple movements, you are depending on the knee for support and mobility. When your knee is healthy, you may take it for granted, not giving a thought about the job it does for you. But once it starts to become painful, stiff, and you are forced to restrict certain activities, you may come to realize how much freedom of movement means to you.
Fortunately, today's advanced medical technology makes it possible to replace the knee joint with an artificial one that reduces pain, allows you to strengthen your legs, and improves your quality of life.
Knee replacement is a procedure commonly performed throughout the world, and one that offers an outstanding rate of success.
In this section, we will discuss how your knee works, how arthritis causes your pain and the knee replacement surgery you will have. We will also help you make preparations for the upcoming surgery and outline what you can expect every step of the way.
How Your Knee Joint Functions?
The healthy knee. The healthy knee joint is a remarkable mechanism. It is formed by the bottom end of the femur (thigh bone), the top end of the tibia (shin bone) and the patella (knee cap). A healthy knee joint has cartilage between the bones that acts as padding. This padding helps assure a gliding movement of the knee that is both effortless and smooth. The healthy knee joint also has a joint capsule which houses the synovial membrane. This membrane produces lubricating fluid which contributes to the smooth movement of the knee.
The human knee is designed to withstand a lifetime of stressful activity. However, sometimes arthritis intrudes, interfering with the knee's ability to cushion the body from stress, and eventually causing the pain that dramatically erodes your quality of life.