Tumescent means "hard", and can be used in contexts other than liposuction. In fact, it is not a technique of liposuction, but rather a tool to reduce blood loss, bruising, and perhaps swelling. Tumescent fluid therefore alows us to remove more fat, because of the decresased blood loss.
Skin elasticity is always a concern with liposuction. If skin is too stretched, liposuction is not indicated. You will need a procedure to deal with stretched skin, which in your case would be a tummy tuck.
My bias is against the Smartlipo, as I feel it is a gimick, and I know of no plastic surgeon who uses it. Therefore, I would urge you to go to board certified plastic surgeon for a full evaluation. If you go to a non plastic surgeon with an expensive lease to pay on the machine, you may wind up with a bad outcome.
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