Comments: Dr. Timothy O'Connor performed a very complicated lower back surgery on me. The procedure was nearly 9 hours long. Prior to surgery I was in immense pain for a year. Now I'm Pain Free! I'm so grateful to Dr. O'Connor for his outstanding performance on this procedure. He has such a wonderful bed side manner and takes his time explaining everything thoroughly before and after surgery. Thank you Dr. O'Connor and your great staff for all your help.