I know of 3 ways to do a revision. Graft, Colon and one just coming out Perinoteal Graft. Most of the time revisions involve retouching the external appearance, there have been revision for the vagina. Most often people go with Colon because it's self lubricating and the dilation requirement are less. While Colon is a very old surgery, it has a risk of serious complication in some case.