with 62.50, and then placed first in the free skate with 128.74, giving her a combined total of 191.24 to win the gold. She thus won her second national gold medal, finishing 7.86 points ahead of the defending champion Rachael Flatt. It was the first time since Michelle Kwan's ninth win in 2005 that a ladies' single skater won more than one U.S. national title. She placed fifth at the 2011 World Championships, her best ever result at the event. During the off-season, she skated in a number of shows. In 2011, she also made a brief appearance in a Super Bowl commercial for Chrysler and Detroit and starred in Chrysler's Perseverance video. 2011–12 season In the 2011–12 season, Czisny was assigned to 2011 Skate America and 2011 Trophée Eric Bompard as her Grand Prix events. She won the gold medal at Skate America and bronze at Trophee Bompard. She was first in the free program at Bompard with 121.90 points, setting a new personal best international free skate score. Czisny qualified for the Grand Prix Final. She sustained a calf injury during a practice session on December 8, explaining "it was the way I picked on a flip jump." After team doctors determined that she would not make the injury worse, Czisny went on to compete and finished 5th at the event. She won the silver medal at the 2012 U.S. Championships. After the 2012 Challenge Cup, where she took bronze, she decided not to include the double axel-triple toe combination in her program at Worlds. Falling twice in the short program and five times in the free skate, she placed 22nd overall at the 2012 World Championships. Czisny was invited to the World Team Trophy but her coach Jason Dungjen declined and Gracie Gold was selected instead. In May 2012, an MRI revealed that Czisny had a torn labrum in her left hip. Czisny said she would not have competed at Worlds if she had known she was injured. After undergoing surgery on June 6, 2012, in Nashville, she began physical therapy the next day and after a month no longer needed crutches. 2012–13 season In the 2012–13 season, Czisny received an assignment to the NHK Trophy but withdrew in order to continue her recovery from surgery. She hoped to compete at the 2013 U.S. Championships. On January 12, 2013, at the 2013 Fox Cities Invitational in Appleton,