What Implants Should I Choose to Replace my Teardrop Implants?

Sunlover86,
Without examining you, it is hard to give specific advice. Also, with having several previous breast surgeries, it makes anything more complicated.
However, I would suggest a narrower diameter but high profile silicone implant. This will help maintain the cleavage, but also reduce the amount of implant that is affecting you in your armpit.
Good luck with your surgery.

Dear sunlover86,breast implant type and sizing selection is a complicated process and requires a detailed consultation that includes a discussion of your goals, a detailed examination, and a lengthy discussion. But the decision will always start and end with the patient. When it comes to sizing, we have all of our patients find 3 photos of their desired breast size. We ask for naked breast photos because clothing can obscure the true size (push up bras). Next, we consult with patients and go over the photos and take detailed breast measurements during a physical exam. Next, we using a sizing algorithm to determine a range of implants that will work based on the exam and the measurements.Lastly, during the operation, we use silicone sizers in the operating room to see how the size actually looks in the breast. We sit the patient up in the operating room, while asleep of course, and compare the sizer result with their desired look photos. If it is too small, we start the process over with a slightly larger implant. We don't stop until we get the perfect match.Of all of my breast augmentation patients, every one of them has been happy with their size due to this detailed and meticulous process. You don't want to invest time and money into a result that is either too big or too small.You should discuss your concerns with a board-certified plastic surgeon and make sure that your surgeon understands your goals.Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

It's difficult to suggest online without photos. Nevertheless, it's best to consult with a board-certified plastic surgeons who have specialized in breast surgery and cosmetic surgery are suitable to perform your breast #augmentation. You will then greatly improve your chances of getting the result you desire, and, without the need for a #revision surgery. Aside from checking board-certification, it is suggested that you look at before and after photos of the surgeons actual patients, and read patient reviews. Gathering all of this information will help you make a well-informed #decision. Please be advised that each patient is unique and previous results are not a guarantee for individual outcomes. 

If you are looking to remove your tear drop shaped implants, it may be safer to replace them with round implants, especially if you want a smaller profile. It is difficult to control the size of the pocket in a breast revision which makes the rotation risk higher if you’re exchanging with a shaped implant. It may be possible to use a new shaped implant if you’re planning on placing a larger implant.

                  The
treatment of secondary breast deformities needs to be individualized and is
based on the patient’s specific anatomic findings and unique aesthetic goals.
It’s impossible to make recommendations without pre-operative pictures and a
physical examination. This is especially true when patients have underlying
chest wall deformities.

                  The
appearance of your breast has been impacted by multiple variables. These
include a pectus excavatum deformity, post-surgical changes, and changes
related to pregnancy.

                  Since
your goals include a natural appearance, increased breast size and more
cleavage, a moderate plus silicone implant would be a good option.
Unfortunately without more information, it would only be speculation.

                  It’s
important that you consult with your plastic surgeon and discuss these issues.
After being evaluated, an individualized treatment plan can be formulated
specifically for you. 

Unfortunately the most commonly used type of implants (high profile) and the most common type of placement ( submuscular/dual plane) cannot deliver the natural 'tear drop' effect or cleavage that you desire.  Leaving the origination of the pectoralis major medially intact in submuscular placement ensures that the implant cannot be medial enough to look natural, and a flat plateau is left centrally.  There are also big problems associated with anatomic implants placed in conventional planes( they work well in subfascial carefully designed pockets).  This is why I use a very unique methof of breast augmentation that I call 'cold-subfascial augmantation.'  the placement of the implants is not 'above the muscle' or subglandular, nor is it submuscular or dual plane.  A very strong layer of connective tissue is meticulously and atraumatically dissected from the pectoralis major muscle and this tissue is used to shape and support a lower profile implant into a gentle tear drop shape.  It is the surgical dissection and not the implant itself that gives shape to the breasts.  The results sit like natural breasts and do not move like submuscular implants do with arm motion.  The fascia also supports the implant giving it relative protection from gravity and aging.  
All the best,
Rian A. Maercks M.D.