I cannot see any pictures here therefore cannot comment on the same. If you have a crater deformity
then the only option is fat grafting but remember that more than 1 session might be required because of the unpredictability of fat absorption. If done in moderation then liposuction
and fat grafting can be done on the same day and do not pose extra risk. Fat grafts are harvested fat obtained from liposuction which are injected into specific areas that obtain blood supply from the recipient site where these are injected. On the other hand, fat flaps have their own blood supply and the risk of absorption is therefore much less following transfer.