"It was probably one of the worst nights of our life," Rossdale, 45, told Us Weekly at Saturday's Simon G. Jewelry "Summer Soiree" party in Las Vegas. "It was a freak accident. He fell."
After a trip to the hospital with his panicked parents, Zuma is recovering well from his accidental injury.
"He's doing good now. Kids, they find a way," says Rossdale, also dad to 5-year-old Kingston. "You feel so much when something happens to [your] kids. It's the worst thing in the world."
MORE ON WONDERWALL:
MORE FROM USWEEKLY:
- May. 26, 2016 Is Amber Heard horsing around with her ex Tasya Van Ree?