Implant size based on chest wall measurements?

The best cosmetic result in any
particular breast augmentation patient depends on a variety of factors,
including: your individual anatomy, realistic expectations, a thorough
discussion with the plastic surgeon about the options, and an understanding of
the pros and cons of any particular implant choice. Proper sizing is not just
about the number of cc’s. The thickness of your tissue, breast dimensions which
include the width, height, and projection, as well as chest wall width all need
to be considered when choosing an implant. Trying on implant “sizers” of
various shapes and volumes while wearing a tight t-shirt, bra, or bathing sit
at a preoperative visit will help you and your surgeon choose the optimal
implant.Implants placed under the muscle tend to look slightly smaller than what they look like when tried on as sizers.
There are no manufacturers' standards for cup sizing in the bra industry. The
cups of a 32 D and a 38 D are significantly different. Cup size
varies from manufacturer to manufacturer and even within styles from any
particular manufacturer.
Keep in mind that following the advice from a surgeon on this or any other
website who proposes to tell you exactly what to do without examining you,
physically feeling the tissue, assessing your desired outcome, taking a full
medical history, and discussing the pros and cons of each operative procedure
would not be in your best interest. I would suggest that your plastic
surgeon be certified by the American Board of Plastic Surgery and ideally a
member of the American Society for Aesthetic Plastic Surgery (ASAPS) that you
trust and are comfortable with. You should discuss your concerns with that
surgeon in person.
Robert Singer, MD FACS
La Jolla, California

It is important to realize that the ultimate breast size and shape depend upon so very many variables. A 300 cc implant on a petite woman with a thin frame may look quite large, but that same implant in an overweight woman may be barely noticeable. Size and shape of the result depend upon the volume of the implant, the shape of the implant, if it is over or under the muscle, your skin and its resilience, stretch marks, the degree of breast sagging, chest circumference, amount and distribution of the natural breast tissue, etc. For this reason, it is impossible to give reliable advice based simply upon height and weight, or even photos. And, implants do not look larger once there placed. Some surgeons even claiming that you lose some of the projection under the muscle, though this is debatable.The only way to approach reliable predictions is with an in-person examination with a board certified plastic surgeon, the use of sizers, 3-D imaging, and most importantly, relying upon the skill, expertise, and experience of your chosen Board-Certified Plastic surgeon.Best of luck!Dr. SubbioBoard-Certified Plastic SurgeonNewtown Square/Philadelphia, PA