14 months ago
The difference between 325 and 350cc. is less than10%. However, in general, size of implant is determined less by cc's and more by dimensions. Patients have a hard time understanding this and often get fixated on the cc's. The volume is the result of dimensional analysis, not vice versa. In fact, the volume tells nothing about the implants since a 350cc implant can have different dimensions (i.e. base diameter and projection) and thus produce different-looking breasts. The best way to choose size is to look at the base diameter of the natural breast and see what implants will give you the most natural look. This is usually the flattest or least projecting implant with the base width about the same as the breast so that the implant will be predominantly covered by the natural breast. You and your surgeon can then determine if this will give you the look you want (i.e. shape, cleavage, width, etc.). To up size, you can increase width or increase projection, or both, until you get outside your target look. There will usually be a few implants that will give you close to what you desire. I then ask a patient if she would be more unhappy being too large or being too small and vary my implant choice depending on her answer.
I have found that, in general, patients who are a little too small, wished they could go bigger but are less unhappy than women who are too big. The former still look good and more natural and can upsize with specific bras while the latter canot hide their excess size. Usually, in the long run, the smaller the implant, the less complications and side effects but speak frankly and specifically with your surgeon.
Going under the muscle does blunt the effects of the implants compared to on top of the muscle for the same implant but it is the relative, not absolute, size and dimensions of the implant that will determine how that implant will act differently in the two different locations.
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