So I went to the urologist yesterday to bring in my stone for examination. The urologist told me that weight loss surgeries increase the likelihood of kidney-stone formation because of lack of absorption. However, the band is the least of the evils of all the WLS's as far as kidney stones go. But still. :( If a person has a predisposition at all for kidney stones, the band makes it more likely that they will form. He said that a lot of surgeons doing WLS don't really cover the relationship between WLS and kidney stone formation with patients.
Drinking water, cranberry juice, etc. (not caffeine though--that's counterproductive)--see Amy W.'s post from a few week's ago--is one of the best things to do as far as prevention goes. Based on the examination of my specific stone, I will have other dietary habits to implement to prevent these puppies.
Oh, but two good things--1) I didn't have a catheter done yesterday, and 2) he said that my stone was nasty looking (I needed some validation--and since it is out, it can't hurt me anymore).