Knee replacement may be an option when nonsurgical interventions such as medication, physical therapy, and the use of a cane or other walking aid no longer help alleviate the pain. Other possible signs include aching in the joint, followed by periods of relative relief; pain after extensive use; loss of mobility; joint stiffness after periods of inactivity or rest; and/or pain that seems to increase in humid weather.
There are three bones in your knee joint. Your thighbone (femur) sits on top of your shinbone (tibia). When you bend or straighten your knee, the rounded end of your thighbone rolls and glides across the relatively flat upper surface of your shinbone. The third bone is often called the kneecap (patella), which is attached to the muscles, allowing you to straighten your knee. Your kneecap provides leverage and reduces strain on these muscles.
When it comes to relieving knee pain, there are many different treatment options. Success varies not only by individual knee but also by what's causing your knee pain. Care for arthritis pain, for example, often involves a combination of treatments. Be sure to consult your doctor to discuss the best treatment plan for you.
As you'd expect, orthopedic implants are very "high tech." Their designs can be quite complex, and the materials used to make them, called biomaterials, are highly developed. Examples of biomaterials include titanium, cobalt-chrome, polyethylene, and Trabecular Metal™ Material.
With Zimmer Patient Specific Instruments, surgeons use an MRI or CT scan to view a patient’s individual knee anatomy and develop a personalized plan. Customized guides are produced that conform to the patient and streamline the surgery. Surgeons have complete flexibility to make fine-tuning adjustments during the procedure, and the patients benefit from the clinical process of either a NexGen® Knee or Natural-Knee® Systems. Both of these knee systems are among the best performing knee systems in the industry.
Rehab begins as soon as you're back in your hospital room. Your rehabilitation program will help you regain strength, balance, and range of movement in your knee. This program will be designed specifically for you and may include a machine called a "continuous passive motion" machine that gently straightens and bends your knee to help reduce stiffness. Other exercises that promote blood flow to your legs include ankle pumps and pedaling your feet.
The knee is the largest joint in the body. A healthy knee moves easily, allowing you to walk, turn, and do many other activities without pain. A complex network of bones, cartilage, ligaments, muscles, and tendons work together to make a knee flexible.