Connecting the upper and lower legs, the knee is a hinge joint and the largest in your body. It allows you to run, squat, walk, sit, or jump, and contains the femur. The bones are covered by cartilage and surrounded by ligaments, muscles and tendons.

Every year, nearly one million Americans of all ages, shapes and sizes, develop arthritis, with the most prevalent form being osteoarthritis.1
Osteoarthritis is the number one reason for joint replacement. Cartilage becomes progressively thinner until bone rubs on bone resulting in pain and decreased range of motion. When non-operative treatments, medication and physical therapy no longer work, it may be time to consider joint replacement.

For those patients who have more extensive arthritis, a total knee replacement may be needed. Today, more than 600,000 knee replacements are performed in the U.S. every year.2 

Knee Replacement, Paul Enker, MD, Long Island Arthritis & Joint Replacement, PCIn a knee replacement, an incision is made down the center of the knee to allow the diseased bone and cartilage to be removed and then replaced with metal and plastic implants. These implants allow the bones to smoothly slide against each other like natural cartilage.

There are no weight or age restrictions for a knee replacement, but candidates are determined by an orthopaedic surgeon.  The typical patient is an individual who suffers from debilitating pain that is not relieved through other treatment options and is between 50 and 80 years old. Surgery can last 60 minutes.

To learn more about this procedure, read this educational brochure.



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2 - National Center for Health Statistics Website. Inpatient Surgery.