Thank you for the question.
Tuberous ( constricted) breasts are characterized by a wide spectrum of presentation including constriction of the breast base, glandular and skin hypoplasia (especially at the lower quadrants), mal-position of the infra-mammary fold, breast tissue herniation into the areola region and sometimes increased areola diameter.
Generally, correction of tuberous breast anomalies involves breast augmentation with areola reduction / mastopexy procedure. The distance from the inframammary fold is increased (to create a more rounded out appearance). Proper implant positioning improves the distance (cleavage) between the breasts. The areola reduction helps to treat the pointed and "puffy" appearance of the areola.
In the most severe cases of tuberous breast, a more complete breast lift may also be necessary. In many cases however, a lift is not necessary. The patient should be aware that the final result will take months to see and that they will need to be patient and that revisionary surgery is more likely than in patients who do not present with tuberous (constricted) breasts.
Although every surgeon may have their own preference, I would prefer to place the breast implants in the sub muscular (dual plane) position if at all possible to minimize risks associate with breast implants placed in the sub glandular position.
Probably more important than breast implant positioning, is selection of a surgeon who has significant experience treating constricted/tuberous breasts.
Best wishes.