Experts predict that the number of hip and knee replacements performed in the United States could skyrocket over the next seven years. Why? A larger elderly population in the country — seventy-six million Americans will hit retirement age in 2008. An increase in arthritis in the American population. Arthritis affects more than forty-six million Americans each year and is most common in older adults. An increase in obesity among Americans — every one pound of weight on your body means three or more pounds of pressure on your knees. Carrying extra weight can also make you more likely to develop … Continue reading →