04/12/2012 at 12:30 PM EDT
Still aching from whiplash and a concussion,
Melissa Gilbert had her first Dancing with the Stars
rehearsal after leaving the hospital.
"Nobody puts Halfpint in the corner!" she Tweeted
to actor pal Craig Bierko, using her character's nickname from Little House on the Prairie.
Gilbert, 47, had to be helped down the ballroom stairs by fellow competitor Gavin DeGraw after injuring herself during a paso doble Monday night with pro partner Maksim Chmerkovskiy.
After missing Tuesday night's result show, in which viewers gave her at least another week to dance, Gilbert Tweeted on Wednesday, "Going to attempt a gentle rehearsal in a bit."
Later, she said she was "very happy" to be back dancing with Chmerkovkiy before signing off for the night: "Now back home to bed."