7 months post op and unhappy with results - could this be lateral displacement? (photos)

Thank you for your question. You look to have a great result from the photos. I tell my patients that great bras create great cleavage. Often times the shape of the breasts and the chest wall/sternum dictate how medial the implants can be placed. If the muscle release is too aggressive you can get symmastia (uniboob). It looks like your skin is fairly lax and so putting in larger implants to fill that out is a disaster waiting to happen. All breasts migrate laterally when lying down to an extent. I think that it is the laxity of your skin envelope that is what is keeping you from having the shape that you want. That unfortunately is not something that surgery can fix. It would be interesing to see your preop pic alongside.

Hello, I am Dr. Salvador Garcia from Guadalajara, Mexico, my recommendation is to change the implants and place them under the muscle, in addition to making an internal bra, so that the implants do not become lateralized and your cleavage is noticeable, it also requires repeating anchor mastopexy to remove excess skin

Naturally, breast fall to the side when laying down. However, your lateral pocket could be tightened to minimize this movement. don't go bigger for this will become worse.