Breast implant size, for tall girl?

Thank you for your question and photographs.  I hope that your plastic surgeon mentioned the fact that you will likely need a breast lift on the left breast to make it symmetrical with the right side.Especially since you will be having a lift on one sideyou need to be very careful in choosing large breast implants as implants in the 500-700 cc range increase the chance of complications in particular when the breast lift is also done.I really cannot fathom why your plastic surgeon recommended 700 cc breast implants.  Even though you are tall 400-475 cc implants will look excellent on you and the chance of complications are less.  Since you seem to have concerns you should consider consulting another board certified plastic surgeon who is certified by the American Board of Plastic Surgery, very experienced in breast surgery and who has an excellent reputation in your community.

You
are focusing on breast size but your more important problem is your breast
shape. Implants only change the volume, they
do not reshape the breasts. I recommend
a new technique called Breast Augmentation with Mini Ultimate Breast LiftTM. Using only a circumareola incision it is
possible to reshape your breast tissue creating upper pole fullness, correct
the asymmetry, elevate them higher on the chest wall and more medial to increase
your cleavage. Through the same
incision, implants can be placed.
Aligning the areola, breast tissue and implant over the bony prominence
of the chest wall maximizes anterior projection with a minimal size
implant. Small round textured silicone
gel implants placed retro-pectoral look and feel more natural, are more stable,
less likely to ripple or have complications needing revision. There is no way you could accommodate 575 cc,
600 cc or 700 cc implants retro-pectoral.
They will extrude inferiorly and laterally requiring revision. 22% of women who undergo breast augmentation
alone require revision within 2 years because they are dissatisfied with the
result. The causes of dissatisfaction
are over implantation with extrusion and not performing a lift when
needed. I suggest you rethink your plan
and consider small implants with a simultaneous lift. Many women refuse lifts because of the ugly
vertical scars of the traditional technique.
This technique avoids the ugly vertical scars, maintains nipple
sensation and the ability to breast feed. Best Wishes,Gary Horndeski, M.D.

Based on the photo provided you are an excellent candidate for a breast lift with augmentation and tummy tuck with flank lipo.Generally speaking with sizing of implants:In my own practice we keep silicone gel
implants of all sizes available for patients to try on in a testing
bra. This is not a perfect teaching tool because under the muscle
implants tend to lose some projection, but because my patients look it actual
implants on their frame I find it the most helpful.

I encourage my patients to bring a friend or
friends for a second or third opinion, and to bring a few different shirts.

I suggest as you look at implants you think
about the relationship between the width of the breast and the width of the
shoulders and hips. Two wide will make you look top heavy, too narrow
will make the breasts look like torpedoes. I personally like to see the outer
curve the breast have balance with the curve of the hip.

Once we hone in on the right diameter we then
look at the projection of the breast which changes the cup size. At the
correct diameter we can use a high moderate or low profile implant depending
upon the patients goals.

Depending upon the starting situation, and the
degree of droop we adjust accordingly.

Photographs of your goals are helpful, but
they don't always tell the whole story. They don't always let you know a
height and width of the entire patient.