Dr. Owen O'Neill did my knee replacement surgery and i couldn't be more pleased. I didn't want to have it done, knew that I had to and imagined the worst I guess. Dr. O'Neill was very informative, along with his staff. The surgery went great, in the hospital for 2 days able to walk without a great deal of discomfort. Therapy went great was done after 6 appointments. My range of mobility is right on. I couldn't be more pleased. I am 70 and that surgery was 10 weeks ago. I would highly recommend Dr. O'Neill to all. For the first time in over a year I can sleep at night without pain.