Indent and muscle grabbing when flex or use pec muscles after revision and implants under muscle. Is this normal? (photo)

When your implants were placed under the muscle, a portion of the muscle was detached (this is the dual plane method.) The edge of the muscle has now adhered into the scar capsule, which causes the animation deformity. Converting to the split muscle plane will correct the animation but preserve muscle coverage over the upper pole where it is most needed.

Dear tlipp,I understand your concern. However, without a proper assessment it would be difficult to determine what is wrong. It is best that you visit your plastic surgeon for further assessment. Only after thorough examination you can get proper recommendations and advice.Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

Without an in person evaluation, it is very difficult to determine what is causing this indent.  From your description, it sounds like it may be due to the muscle attachment to the overlying tissue causing some animation deformity.  I would recommend discussing your concerns in person with a plastic surgeon who can discuss the different options for revision.