"It's a very important operation in pediatric neurosurgery," he said. "It can affect the brain's growth and development. It can be a cosmetic problem. It can affect vision in some cases."
Sedney said she found Peyton's reconstructive surgery fascinating, and that reshaping the bones was like putting together a sculpture.
"At the end when you take the drapes down and it's like a totally different kid, it's pretty neat," she said. "The kid looks pretty cute. I would definitely call it a success."
For Peyton's anxious parents, who had been in the waiting room throughout the six-hour surgery, seeing their son afterward was like meeting him for the first time again.
"You hate for them to go through that ... he's so small, and when you see somebody like this, it's, oh my golly, but he will be fine. He's a little trooper," Cassandra Edwards said through tears. "Just wish you ... could experience the pain instead of him."
"You just worry about him being so small and going through a major surgery," Dennis Edwards said. "We knew it's the best thing to do for him, you know, there is never any doubt."
Peyton has to wear a special helmet for six months to help mold his skull correctly, but it hasn't stopped him from trying to keep up with brother Patrick.
"[The helmet] is supposed to be on two to 24 hours a day," his mother said. "He wants to play. It's just so heavy on his head."
It's a small price for the Edwards family to pay. The surgery transformed Peyton's future, because now he has a chance at normal development.
Two months after surgery, Cassandra said she watched her son become more active and begin to mimic his brother.
"[He's] a healthy little boy," said her husband. "He can go on and do his regular routines, what a boy would do, sports and everything. It's definitely given us joy and hope."