Sophia Floersch underwent successful surgery that lasted 11 hours on Monday, according to her father, having suffered a spinal fracture in a sickening crash during the Macau Grand Prix's Formula 3 race on Sunday, which also injured four more people.
Floersch fractured the seventh cervical vertebra in the incident, in which Japanese driver Sho Tsuboi also sustained injuries.
The 17-year-old slid out of control on the outside of track limits and appeared to be vaulted into the air as she passed back over kerbs, hitting Tsuboi before slamming into the temporary structure that housed photographers and marshals.
Tsuboi was discharged from hospital after treatment, while two photographers and one track marshal were also hospitalised.
Floersch tweeted that she was "fine" shortly" after the incident and after an update was posted on her account on Monday, her father delivered more positive news later in the day.
Alexander Floersch told Motorsport-Magazin: "According to the attending physicians, the 11-hour operation went well and Sophia is now being monitored in the intensive care unit and will spend the night there from Monday to Tuesday."
The FIA's president Jean Todt has vowed to launch an investigation into the matter, with Floersch having been sent airborne by kerbs that were installed for 2018's race.
According to Motorsport, Chinese photographer Chan Weng Wang will spend 10 days in hospital, having sustained a lacerated liver and race marshal Chan Cha will also remain under supervision with a broken jaw.
Another photographer Hiroyuki Minami has already been released.