Why do revisions move the implant under the muscle?
A submuscular site change adds soft-tissue coverage, hides rippling, and gives the new implant a fresh pocket away from a problematic capsule.
When an implant sits above the muscle in thin tissue, its edges and surface folds can become visible or palpable over time. One of the most common structural fixes at revision is relocating the device to a plane under the pectoral muscle.
What the muscle layer solves
The muscle adds a padding layer over the upper implant, softening visible edges and rippling. Creating a brand-new pocket also lets the surgeon leave a contracted or stretched old pocket behind, which is why site change is a standard response to recurring contracture in the over-the-muscle plane.
The trade-offs — longer early recovery and possible movement of the implant when the muscle flexes — weigh differently for each body and lifestyle. A specialist consultation with imaging is the place to test whether a site change fits your case.
MediIndex articles are for general information only and are not medical advice, diagnosis, or advertising. Outcomes vary by individual — consult a board-certified specialist for personal decisions.