I can answer this question definitively: there is no need to remove the internal fixation devices for the surgical correction of scoliosis. Today’s internal fixation devices are no longer the simple stainless steel of the past, but are made of titanium. This titanium is biocompatible with the body and is not harmful when placed in the body. When is it necessary to remove a steel nail? For example, if there is an infection, we may need to remove the metal internal fixation. What are the potential problems with removing the nail? In my experience, some patients have had their scoliosis go back to the way it was after the metal fixation was removed. This is because even though the bones are fused after scoliosis surgery, the bone is still a “living” bone and has a tendency to curve back. Therefore, it is necessary for the surgical fixation to remain in the body to maintain its orthopedic ability, and it is not necessary to remove it again.