The serious injury to Nova is part of a spate of falls that have rocked alpine skiing in recent weeks.
Austrian Nina Ortlieb was diagnosed with a fractured leg, having screamed in pain after crashing out during the downhill on Sunday, with the race delayed by 30 minutes as she was treated beside the piste.
Following surgery, Ortlieb wrote on social media that her “nightmare had become reality”.
“I can’t find the right words at the moment, but I’m very grateful for the support and messages. Knowing that I’m not alone makes it easier.”
While in the men’s events in Kitzbuehel, Austria, on Saturday, French pair Alexis Pinturault and Florian Loriot and Italy’s Dominik Paris had to be airlifted off the slopes after crashes.
On December 27, defending Kitzbuehel downhill champion Cyprien Sarrazin of France had his season cut short after undergoing surgery to treat internal bleeding in his head following a harrowing accident in Bormio.