Definitions like these should be discussed with your surgeon to ensure you are on the same page. Liposuction of the abdomen does not typically include the hips and flanks. However it may be included in the term "trunk". It's important that you are clear and comfortable with your surgical plan...
I would suggest Sculptra injections, which can help rebuild thin areas. It will be a few sessions and build gradually. Find someone who does a lot of Sculptra, especially in scarred areas.
As the marketing teams have designed it, with the help of surgeon's who've purchased or invested in them, you've been duped into thinking that some device is going to give you superior results in liposuction, or perhaps skin tightening too. But it's never been about the machine, it's always been...