Hello Txestella,
It is true that outer thigh lifts or lower body lifts have a difficult time with the saddlebag region due to it's unique anatomy. However, that does not mean you won't get a significant permanent improvement, even with some settling of the tissues after surgery. Body contouring for those that were morbidly obese has a very high re-operation rate due to poor tissue and skin characteristics; it's the norm not the exception. You should enter into any plastic surgical procedure armed with the knowledge that you will probably benefit from some form of revision surgery that may require general anesthesia or just local anesthesia, depending on how extensive the revision. A responsible and experienced plastic surgeon will tell you this during a preoperative consultation.
Please don't misunderstand what I am saying; body contouring is the best way possible to change your appearance after adequate weight loss, and other less expensive or minimally invasive techniques will give you no results. An alternative to the LBL is direct excision of the saddlebag region. It is more effective, but has a much more conspicuous scar placement and will not address other issues including the waist, hip, and buttocks.
Best of luck!