"I'm on a little medication right now," People.com quoted Rycroft as saying before she hit the floor for the all-star edition of the competition show. "[But] I'm officially cleared to dance."
There will be no weekly elimination on Tuesday night's episode, People.com said.
Still in the running with their professional dance partners for the show's coveted mirror ball trophy are Sabrina Bryan, Kirstie Alley, Apolo Ohno, Gilles Marini, Kelly Monaco, Shawn Johnson and Emmitt Smith.
Tom Bergeron and Brooke Burke-Charvet are the co-hosts of the show.