Risk of High-profile Saline Breast Implants Pushing out over Time?

Hi Jenna. A high profile saline implant on your frame would certainly give you a more rounded appearance and more filling in the upper portion of the breast. In my experience, a round, smooth, saline implant is preferable to tear-drop shaped implants. All implants (saline or silicone) are affected by gravity and will descend with time. Many patients who have implants come back for a breast lift at a later time. If at the time of surgery the "pocket" (the place where the implant is placed) is created correctly, then it is unlikely to move out to the side. Hope this helps you make your decision.

It sounds as if you would like a big size implant for your frame. With your narrow chest, a high profile implant may be your best choice. I have become less enthusiastic about the tear drop implants. I used them for many years and have seen rippling and deflations at a much higher rate than the smooth wall saline implants.
The only way an implant can migrate laterally, or to the outside part of your chest, is if your surgeon over dissects the pocket. The implants do have a tendency to drop or droop over time, but this is normal. I would discuss your final size wishes with your doctor, not just the size of the implant. When done properly, high profile implants have a very natural look.