Knee Replacements
Out of the four millions Americans who seek medical help for knee-related ailments annually, nearly 250,000 will undergo knee replacement surgery. This surgery, developed in 1974, is safe and effective. The prosthesis is generally made out of a metal alloy and plastic. These artificial parts can last as long as two decades inside the human body, if they are inserted properly and not overused.
Knee replacement surgery can bring almost instant relief to those who have had knee injuries or have suffered with arthritis. But not every surgery is successful.