This type of surgery is actually a combination of many single surgeries, which is saying it does not use a different type of surgery method; the only difference is the surgery procedure time is longer, and the risk during general anesthetics is higher. So many health examinations must be performed prior to surgery, and a professional anesthetist must stand-by throughout the entire surgery process, to minimize risk. Also because the time is longer, so the chances of the implanting material being infected are increased, so you must follow the instructions of the doctor carefully and take antibiotics, to ensure the success of the surgery.
If you want to lower the risks of surgery, you can choose to have separately multiple reconstructive surgeries; the final results should still be the same.