Comments: Dr. Darr replaced both my knees over two years. Now one year post the knees work great. Dr. Darr is attentive and compassionate. He cares about his patients and is very accessible. His staff is way beyond pleasant and helpful. The whole experience, surgery, physical therapy and follow up visits is really better than anyone would hope for. Great people, well trained and almost eager to make your knees work. I am so thankful I had Dr. Darr do my knees.