Okay, time to back wayyyyyyy up here. You are posting tiny little questions with zero context, making them difficult if not impossible to answer with any accuracy. We have no clue who you are or what your situation is or what surgeon/s you're talking to. Please STOP right now and do the following:
1. Post an introduction in which you give some information about your surgical history, what you lost, what you gained, any complications, what kind of followup care you've had, and why you are looking into a revision.
2. The questions you are asking can be easily answered, thus far at least, using Google and the search function in this forum, as well as by reading on
www.dsfacts.com. Please do a whole bunch of reading on the links you have been given. It will help you ask more useful questions.
If, in fact, you've already read these things, the problem might just be that you are posting such short little questions. Again, no context, so we can't know if you have any idea what we're all trying to talk about.