The most sophisticated approach to breast augmentation is through the armpit with a surgical camera (transaxillary endoscopic).
Using this modern approach the space can be crafted under direct vision, with virtually no bleeding and no postoperative bruising. Most importantly, the shape of the breast is meticulously created.
The other, older methods of insertion are technologically less advanced. Both silicone and saline implants can be placed through the armpit by a surgeon with skill and experience using this approach. The incision in the crease is the oldest method of placing the implants and puts a scar directly on the breast.
A round implant would be a better choice because they move more like breasts. The anatomic implants have a textured surface which makes them feel very unnatural. In addition, there is no benefit to anatomical. There is an X-Ray study that shows the implants from the side at 6 months.
Standing, the round and the anatomical implants have the same profile. When you lie down however, the anatomical implants do not change, which is unnatural.
A round implant will change when you lie down, like a natural breast would. The best way to determine the size that fits your personal perception of the perfect breast is to try on sizers. This way you can see how they fit on you, how they add to your current volume, and whether they fit your frame. Although the surgeon can guide you, only you will be able to tell what is the right size. Try on sizers.
Measuring a diameter and then telling the patient what volume they can have (in high, moderate or moderate plus implants) in my mind is backwards. The patients should be allowed to choose the volume. Then the surgeon carefully considers the base diameter, projection, profile, manufacturer, and fill material that will achieve the patients goals of size as well as qualitative look (natural, intermediate, or bold upper pole fullness or projection), all the while taking into consideration the patient’s anatomic features that will affect the outcome.
The experience of the surgeon and the degree to which they explain the options to you is of utmost importance. The subtlety in the final outcome is not achieved by which profile implant is used, it is determined by the skill in the creation of the pocket, the choice of implant.
Don’t let the doctor tell you what would look good on you. They cannot tell what you perceive to be the best size. There is no maximum. That is up to you.