I had the hip replacement the old way. Due to a car accident in 1972, blood flow was cut off to my hip. I was in terrible pain whether I layed, walked, or sat, was ready to freeze up. I put up with that for about 5 years, waiting for technology to catch up. Old hip had to be chizzled out took about 5-6 hours, that was in 1992. The anniversary of the surgery was Dec. 02, 19 years later it is still working. I was 25 when the accident happened, drunk driver, and 47 when it was replaced. Good luck, I hope yours last as long.