The best age to get the Nuss Procedure is around 13 – 16 years old when the chest’s cartilage and bones are still malleable and easier to manipulate and bend into the correct shape. Though Dr. LoSasso has completed many very successful Nuss Procedures in patients as old as 51 years old. So though it is best to get the surgery when you are younger, it is still possible to have excellent results even in adults.