Why does one implant move with muscle flexing?

Question

I have 750 cc mod plus silicone under muscle implants. The implant that I can see and feel moving is not on my dominant side. It's not a major deformity but noticeable. Is there something I have done wrong in the healing process to cause this? Is there something I can do to decrease this? I am 3 mo post.

Jose M. Soler-Baillo, MD, MS · Answer

Thanks for the question. The movement of the implant under the muscle is relatively normal due to its position. Though if you do have any concerns, speak with your plastic surgeon or get a second opinion from another board certified plastic surgeon.All the bestDr. Results

Vincent N. Zubowicz, MD · Answer

It's possible that the implants would be distorted asymmetrically by exercising the pectoralis muscle with a sub muscular augmentation. There's the outside possibility that one implant was placed above the muscle what that's highly unlikely. More than likely this is a modest asymmetry and nothing to worry about.

Nelson Castillo, MD · Answer

Thank you for your question.  I believe what you are describing is the "animation deformity" that exists when implants are placed beneath the muscle of the chest.  As you flex, the muscle squeezes down in a diagonal direction from your breast bone towards your shoulder. When this contraction happens, the implant underneath the muscle is moved downward and outward.  This only occurs when you move your chest muscle, and the implant returns to its previous position when the muscle contraction stops.  Unfortunately some women notice this more than others, and in your case apparently on one side more than the other. I would speak with your plastic surgeon about this, as he can give provide reassurance and perform a physical exam to ensure this is what is taking place.

Aldo Guerra, MD · Answer

Hello amyrn. Congratulations on your breast augmentation. You have very large breast implants and any small muscle movement will be far more noticeable under the circumstances. The condition you have is called animation. I don't believe there is anything that you did wrong. Our bodies were not designed to have a breast implant under the muscle despite the obvious benefits. Your PS can go back an release more muscle, but the potential side effect of doing is is bottoming out. Unless the condition is very noticeable, it might not be worth the risks. Discuss your concerns with your PS. Best wishes, Dr. ALDO

Steven Wallach, MD · Answer

Almost all implants under the muscle may cause some flexion issues. If it is minor, then I would not worry about it.  If concerned, discuss with your surgeon.

Why does one implant move with muscle flexing?

Answers (5)

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