It is possible to undergo injections in this area either with your own fat or Sculptra after subcision which is releasing any scar tissue that may be preventing expansion of this region.
These injections can cause issues, but I typically only operate or contemplate operating if problems exist. MRI may be helpful for determining location or deposition.Kenneth Hughes, MDLos Angeles, CA
Unfortunately you have joined the many misled patients about the outcome and safety of buttock injections for augmentation. The most important thing now is to get completely healed then consult with a board certified plastic surgeon (and member of the American Society of Plastic Surgeons)...