Thank you for your question regarding what procedures you need to address the front and back of your torso. Congratulations on your weight loss of 120 pounds. Before you consider reconstructive plastic surgery after massive weight loss, your weight should be stable for approximately 3 to 6 months. Once your weight is stable, then you can consider these procedures. In regards to your stomach, I would suggest an extended tummy tuck. This includes permanent elimination of excess skin of the abdomen and hips, pubic (mons) lift and reduction, recreation of the belly button, and abdominal muscle tightening. For your arms, I would suggest an arm lift, arm reduction, or brachioplasty. This includes arm liposuction as well as removal of excess skin and fat from your elbow to your armpit. For your back fat and back skin rolls, I would suggest a torsoplasty. There are two types of torsoplasties. Your best torsoplasty option would be a horizontal torsoplasty or a bra strap-plasty. During the horizontal torsoplasty procedure, an incision is made across your back, ideally underneath her bra strap line. A butterfly area of excess back skin and fat is eliminated. Another option is the vertical torsoplasty. During a vertical torsoplasty, an incision is made from the armpit down the side of your torso. Sometimes the incision goes to the bottom portion of the bra, sometimes the bottom of the ribs, and sometimes to the top of the hip. The extent of the vertical torsoplasty incision depends on the individual patient. The main advantage of the vertical torsoplasty over the horizontal torsoplasty is that the vertical torsoplasty scar is hidden. However, in your case your best results would be obtained with the horizontal torsoplasty, rather than the vertical torsoplasty. Many of these procedures can be combined or they can be done in three stages. Please seek an experienced, board-certified plastic surgeon who has performed hundreds of these surgeries.