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.

Yes, laterally displaced implants can definitely be improved with revision surgery.  You need to see your original surgeon and express your concerns.  A plan can be formulated to correct the problem. If you are uncomfortable with the evaluation and plan, get another opinion.

Yes your breast implants can be fixed. It sounds like the pocket is lateral and maybe too large. The pocket can be closed with sutures and if the sutures need reinforcement seri scaffold can be used. Seri is much cheaper then the ADMs and I have had great long term results with seri. 

When the implants are under the muscle the weak spot is the lower outer quadrant, so when there is implant malposition the implants usually drift down and out.  If your implants were placed via the transaxillary approach a tunnel must be created from the incision to the muscle, occasionally if the tunnel is made too wide the implant may migrate towards the armpits.  This can be fixed either with a biologic type membrane such as SERI or a capsulopexy.