According to the American Academy of Orthopedic Surgeons, over 2.5 million Americans are currently living with an artificial hip. With the percentage of patients aged 45-64 having gone up 123% in 2014, the simple fact is that hip replacements are becoming more and more common among generations of Americans who wish to stay active. More likely than not, you know someone who will need an artificial hip in their lifetime, chances are, so could you.