Can breast implants that have settled in the armpits be fixed with another surgery?

Thanks for your question.  If implants have displaced too far laterally, it might be correctable by closing the outer part of the implant capsule and making more space along the inner part.  A plastic surgeon can explain your specific options in more detail.

This is not an uncommon problem that I have seen in my career.  The problem can usually be fixed by closing off the implant pocket laterally so that it can't drift outwards.  This can be done with stitches inside the pocket (capsulorrhaphy) or with the addition of ADM (Alloderm, Surgimend, etc.).  ADM's are VERY expensive and I find that I can fix these problems without them.  I would suggest that you schedule an appointment with a board-certified plastic surgeon who can examine you and review your options with you.

I am sorry to hear about the problem you are experiencing after breast augmentation surgery. Based on your description, it seems like you are experiencing a breast implant displacement problem.
Generally, the lateral breast implant displacement can be corrected using an internal suture technique, decreasing the size of the pockets and moving the implants toward the midline. Doing so will prevent the breast implants from migrating to the sides when you lie down and will help centralize the position on the breast mounds. In my practice, this repair is done with a 2 layered suture technique. The use of acellular dermal matrix is an option ( although not usually necessary) especially if significant implant rippling/palpability is present.
I hope this, and the attached link (dedicated to lateral breast implant displacement concerns), helps.