Thank you for your question its hard to answer your question without pictures or an evaluation. I my experience the more fat transferred the better results. Areas to consider would be your abdomen, back bra rolls and flanks at times Inner Thighs and Knees. This would be based on your current projection and how much fat you have to give. Removing the fat from the back bra rolls and waist alone can greatly improve your overall shape and enhance your curves. Once your waistline is more defined like an hourglass you will be able to see your buttock shape. Then once the fat is transferred to the buttock you will get more projection. It's best to consult with a Board Certified Plastic Surgeon to get an examination to assess the areas and outcome. Best of luck.
Furthermore, The Effect of Study design Biases on the Diagnostic Accuracy of Magnetic Resonance Imaging for Detecting Silicone Breast Implant Ruptures: a Meta-analysis (2011) reported that the breast-screening MRIs of asymptomatic women might overestimate the incidence of breast implant rupture. In the event, the U.S. Food and Drug Administration emphasised that “breast implants are not lifetime devices. The longer a woman has silicone gel-filled breast implants, the more likely she is to experience complications.”
The current lifetime risk of BIA-ALCL in the U.S. is unknown, but estimates have ranged between estimated to be between 1 in 70,000 to 1 in 500,000 women with breast implants according to MD Anderson. Certain geographic locations have demonstrated variable risks. For instance, a December 2016 update from the Therapeutic Goods Administration of Australia and New Zealand reported a risk of 1:1,000 to 1:10,000 for textured implants.". To date (2017), there has not been a case of BIAL reported where the patient had only implantation of smooth shell breast implants or a textured tissue expander that was exchanged for a smooth implant. The paucity of cases reported in Asian populations has raised the possibility that there may be a range of genetic susceptibility to the phenomena, or alternatively merely reflect differences in how cases are identified and reported.