The 68-year-old Oscar winner was at home with her pets when one of the canines excitedly jumped at the star causing her to fall and incur the serious injury, reported New York Post.
"I was picking up my dogs, and they jumped. And I got twisted and fell. I thought it's nothing. But it wasn't nothing. It became something. The operation's next week. After an X-ray, seems I busted it and have to have it fused," Liza said.
The painful accident also forced Liza to miss the funeral of her friend, Joan Rivers, over the weekend.
Due to a previous back injury, doctors have told the 'Cabaret' actress it will be difficult to repair the break.