Yes ultrasonic body contouring is very much possible by surgery. It is an effective way of bringing back your saggy skin and tissues to a fit condition by removing the extra fat and skin after the heavy weight loss period. You can control and force the body to reduce weight but cannot push the already loosened tissues and skin to come back to its normal to match the reduced weight of the body. But body contouring has a control over them. Go for a surgery with the best surgeon; stop your other medications well in advance; get prepared for the surgery with a lab test.