The amount of weight you can lose following LapBand surgery depends on your amount of determination to stick to your diet program.  A person still has to develop particular eating patterns and a daily exercise plan.  It is feasible for a person to lose 65 pounds in a year after having Lap-Band surgery.  The weight will only stay off if you will commit yourself to the weight loss and exercise program.  It is much the same as with any diet—so stay healthy and happy.