A Brazilian Butt Lift can be done after butt implants if patients need fat transfer. The benefit is not only the additional fat that is added that can fill any gaps that were not enhanced by the implants but can also improve the overall shape of the patient.
The benefit of the Brazilian Butt Lift is that it shapes the waist as fat is liposuctioned (harvested) to be used for the enhancement. Then the fat can be used to enhance the over shape of the buttock and hips. It will also help buffer the implant so that is has a more natural feel and look to the augmentation.
The only issues is that a large percentage of women that have butt implants have them because they were to thin for fat transfer. If you have enough fat then you can certainly have a Brazilian Butt Lift after your augmentation with implants.
Please discuss your Brazilian Butt Lift procedure with your board certified plastic surgeon that performs a high volume of butt augmentation procedures.