I think that this is one of those "it depends" sort of things. What one person considers as an essential element, another might think of as unimportant. Plus, it all depends on the type of surgery, the type of patient, ability to travel, and insurance restrictions.
In addition, you can go to the highest rated, god-like surgeon in the world, and still have a poor outcome (but the risk is less). So do not consider it any sort of guarantee.
Here is a Consumer Reports article that can help you sort out what you need to explore before you narrow it down to a few to interview:
http://www.consumerreports.org...ht-surgeon/index.htmGood luck! I know we always want the best for our kids.
Jan