8 months post breast augmentation- are my breasts malpositioned?

Patients must understand the limits of the surgery. Implants will not create cleavage in the sense that they cannot medialize wide or lateral set breasts. The implants will be centered on your native breast mound which may seemingly worsen the wide set nature of the breasts without actually changing the measurements. It is often helpful to think of breast augmentation as a magnifying glass or IMAX screen where all aspects of the breast are enlarged (+) and (-).
One option for creating a more central or medial mound is subglandular augmentation. In this scenario, the medial boundary as defined by the pectoralis muscle attachments to the sternum are not present. This can allow for greater medial dissection and by association greater cleavage (not recommended). However, this does in crease the risk of symmastia. There is also the risk of deformity which stems from failure to center the implant on the native breast mound.
Ultimately, cleavage is essentially a function of the anatomic starting point. If you have wide set breasts, implants are only likely to accentuate this deficit. However, patients with closely spaced breasts will accentuate their cleavage via augmentation. Trying to force the mound centrally often leads to a mismatch between implant and native breast. They must be centered on each other in order to obtain a good result.Based on your photos, you have an excellent result. Your breasts were widely set pre-op and your implants are centered on your native breast mound.
As always, discuss your concerns with a board certified plastic surgeon (ABPS).

Where implants should be placed is determined by your underlying anatomy. These implants are centred perfectly behind your nipples which means they’re definitely not malpositioned. You have naturally wide set apart breasts which will limit how much cleavage you can get without a push-up bra. A lift might help a little bit however there’s only so much that can be changed with surgery.  The only way to know for sure is to book a consultation with the breast revision expert in your area to be examined. Hope that helps!