Can You Change Implants from Over the Muscle to Under the Muscle?

Implants can be placed beneath the muscle if they were once over the muscle.  This would decrease the visible wrinkling and decrease the potential for capsular contracture.  Concerning the implants falling into your armpits this is a function of creating a pocket that is not too wide.  

Dr. ES

The surgery you require consists of multiple steps and interventions involving many choices such as capsulectomy, capsulorrhapy, suture fixation, saline to silicone transition, etc. This is a complex operation that can and should be performed by an experienced board certified plastic surgeon. You may want to obtain multiple consultations in this regard. You will be at higher risk for complications such as "window shading" and/or the need for a touch up.