In order to treat the treat the thighs, a 1200 total tip should be making several passes with the appropriate vectors. Please consult a board certified dermatologist withe experience with Thermage for the best cosmetic results.
Yes, I have many patients who have Thermage just for this reason. The beauty of Thermage is that it produces new collagen and tightens and rejuvenates the skin. This new collagen will prolong the good effects of the Face Lift and hopefully postpone further surgery.
Thermage works though a mechanism of radiofreqency heat and is entirely safe. Your history of breast implants would have no implications on being a candidate for Thermage. I would also consider having Sculptra for facial contouring as well.