Life-altering surgeries to restore mobility, provide pain relief for more than 200 individuals on Dec. 7ROSEMONT, Ill., Dec. 7, 2012 /PRNewswire-USNewswire/ -- While more than one million hip and knee replacements are performed in the U.S. each year, countless men and women continue to live with severe arthritic pain and immobility because they cannot afford joint replacement surgery. Through the 2nd annual Operation Walk USA, more than 109 orthopaedic surgeons, at 49 hospitals in 29 states, will provide free joint replacements to 200 individuals on Dec. 7, 2012. Operation Walk USA 2012 provides all aspects of treatment – surgery, hospitalization, and pre-and post-operative care – at no cost to participating patients. Arthritic disease is the most common cause of disability in the U.S., affecting approximately 48 million Americans, or more than 21 percent of the adult population. The debilitating pain of end-stage hip or knee degenerative disease often makes working, or completing even the simplest of daily tasks, excruciatingly painful or impossible. Hip and knee replacement surgeries are the most cost-effective and successful of all orthopedic procedures, eliminating pain and allowing patients to resume active, productive lives. Operation Walk USA began in 2011 following the tremendous success of Operation Walk, an international volunteer medical service organization that provides treatment for patients with arthritis and joint conditions in developing countries. To date, more than 6,000 patients have received new knees and hips through the international Operation Walk. "Regardless of circumstances, people in need should have relief from debilitating joint conditions and receive a new lease on life," said orthopaedic surgeon Adolph V. Lombardi, Jr., MD, President and founder of Operation Walk USA. "This is the essence of Operation Walk USA." In 2011, Operation Walk provided life-changing hip or knee replacements for 85 patients.