An implant can only flip when it has room enough to turn on its side, which means the pocket has a lot of laxity or space. When an implant's vertical height (projection or profile) is nearing the length of its width, then flipping is easier. Geometrically, the shape whose height and width are the same is a sphere. This is the situation with high profile, and more so, ultra high profile implants. When you think about it, these devices are approximating spheres in their shape. Implants that are lower profile have a much greater width than their height, and are not as prone to flip because there isn't enough room to turn onto their side. You can have a capsulorrhaphy to tighten up the pocket and prevent flipping, but it will only be a matter of time (a few months? a year?) before it becomes loose again, baring capsular contracture. Alternatively, you can choose a lower profile implant and have a capsulorrhaphy and possibly prevent it from happening ever again. The problem with the latter option is that you'll have smaller implants.