Had a hip replacement November 2017. I considered myself pretty active and with officiating 4 sports, my hip got so bad that I was in tremendous pain and thought I would have to give officiating up. Met with Dr. Knowlan and he started the game plan for me to have a total left hip replacement in the EXCEL program. What a life changer that was. Surgery went extremely well and I followed all his directions on recovering from the surgery. I couldn't believe how quickly I recovered from the surgery. I was back to umpiring in the spring of 2018 and basketball in 2018-19. I have had no problems with my left hip at all. I would recommend hip replacements to anyone needing one, just follow what TCO and Dr. Knowlan tells you, and you will recover 100% with no problems like I did.