Matt Evers was rushed to hospital and required several stitches after the mishap occurred during training for the ITV contest last night (February 25).
He sustained the injury when they were practising the neck spin, which involves Porter wrapping her legs around Evers's throat.
"They'd rehearsed once without mishap, but Matt warned Jorgie her blade was getting too close," an insider told The Sun On Sunday. "When they tried again she caught him and he cried out in pain. He's expected to be well enough for the show."
Evers later praised those who helped him in the immediate aftermath of the accident, writing on Twitter: "I am so blessed to be surrounded by the best, most professional and caring people in the world. U all know who u r and THANK YOU."
He added to his followers: "Thanks for the messages. WE WON'T LET'S (sic) THESE THINGS STOP US!"
The pair are expected to perform on tonight's Dancing on Ice show.
Evers's injury comes less than two weeks after Jennifer Ellison stabbed her head with her own skate during a live routine.
Dancing on Ice airs at 6.50pm on ITV1.
> 'DOI' stars banned from risky moves as Jennifer Ellison slices leg