"She is devastated by what has happened," said Valerie Lucas, Savannah Underwood's mother.
Savannah was one of six young adults who were packed inside a Nissan when it slammed into a concrete abutment on the 5 Freeway in Burbank early Saturday morning.
The five killed were all recent high school graduates from Burbank. They were declared dead at the scene.
But Underwood, who was sitting in the back seat behind the driver, was able to escape the burning car.
"She had gotten herself out of the vehicle and a delivery man from Hook Burger heard her screaming and was able to literally drag her away from the vehicle," said Valerie Lucas.
Underwood's family held a short news conference this afternoon outside LA County/USC Medical Center, where the 18-year-old is still being treated. Her injuries, her parents say, are extensive.
"She had a dislocated pelvis that had to be put back together; a twist fracture fibula and her tibia, which she now has a metal rod holding it in place," said Lucas.
The Underwood family wouldn't talk about the specifics of the crash. Their attorney referred questions to the Burbank Police Department. But the family is asking for privacy as Savannah recovers.
"To the other families, all we can say is: We're so sorry. We are so sorry," said Savannah's father, David Underwood.
The family says Savannah began physical therapy Tuesday. She may be able to leave the hospital by the end of the week.