I had my first bio pro implant put in January 2010 on my right thumb by Dr John Thiel at Hayes Green Beech Hospital in Charlotte Michigan. I had such great success that when my left thumb started to go bad I seemed out another surgeon who did this procedure. Dr. Thiel had retired. I found Dr. Barry Collins at Bronson Orthopedic in Battle Creek Michigan. 10 years, 10 months and 17 days later I now have my left thumb implant in and it is fabulous. I love telling people all about Bio Pro Implants. So blessed to have found relief of my extreme pain. Thank you