Can the Root/base of the Breast Be Altered?

The base diameter can be reduced by cutting a pie wedge sector out of the breast and approximating the edges of the remaining wedge. Most surgeons in the US do not do procedures to transfer base width tissue into projection tissue. I have seen it done in South America where a wedge of tissue at 6 o'clock is cut as a tongue of tissue that is passed under the breast to increase projection and keep the breast lifted while approximating the edges remaining at 6 o'clock narrows the base diameter. I have tried it but was not convinced of the techniques efficacy.

I hope you realize that this format of posting questions and receiving answers lacks the face to face direct communication required for you to make an informed decision regarding your surgery.

My response to your question/post does not represent formal medical advice or constitute a doctor patient relationship. You need to consult with i.e. personally see a board certified plastic surgeon in order to receive a formal evaluation and develop a doctor patient relationship in order to know if this assessment is valid.

The overall shape of the breast can be changed by a mastopexy (breast lift), this can be done without a breast implant.

In a breast lift or reduction, the base width can be narrowed slightly, but due to the characteristics of soft tissue which aren't taken into account in your geometric calculations, it is very difficult to increase the projection a significant amount. All breast lift techniques mainly change how much breast tissue is present below the breast fold and increase projection some, but not to the degree of your theoretical calculation. An implant combined with a breast lift will increase the projection more than a breast lift alone.