Following Nationals, Liukin was named to the American team for the World Championships in Stuttgart, Germany, where she competed all-around in the team qualifying round and on bars and beam in the finals.
Liukin's score for her bars routine in team finals was a 16.375, the highest score of the day and, in the end, the entire World Championships.
She continued through the rest of the competition and, despite the incomplete bars set, finished 15th, which landed her one of the final spots on the U. Her bars routine in team finals scored a 15.7 and helped the U. Liukin's ankle injury required surgery, and the recovery period kept her out of both national and international competition for much of the year.
In July 2007, although she was still recovering from her injury, she returned to competition as a member of the American team for the Pan Am Games in Rio de Janeiro.
Liukin performed second on balance beam, matching her qualifying score of 15.975.
The American team earned the silver medal, 2.375 points behind China.
She also earned a silver on the uneven bars behind Russia's Ksenia Semenova, scoring a 16.300 after taking a step on her dismount.
Liukin's first meet of the 2008 season was the American Cup in New York City, where she defeated 2007 winner Shawn Johnson to regain her title.
She graduated from Spring Creek Academy, located in Plano, Texas, in the spring of 2007.
She enrolled as a freshman international business major at Southern Methodist University in January 2008, and took a leave from classes to concentrate on preparations for the 2008 Olympic Games.
Liukin competed in her first National Championships as a junior in 2002, at the age of 12 and a half. By 2003, Liukin was one of the strongest junior gymnasts in the United States. At the 2006 Pacific Alliance Championships, Liukin tied with teammate Memmel for first in the all-around, won the uneven bars title and a silver medal on beam, and contributed to the U. It's about the journey." In late August, at the 2006 U. National Championships, Liukin successfully defended her all-around, beam and bars titles, becoming a two-time senior national champion. However, because of an ankle injury sustained in training before the competition began, she was only able to compete on one event, the uneven bars.
In contrast to her WOGA teammates Carly Patterson and Hollie Vise, who finished first and second, respectively, Liukin suffered a fall on the uneven bars that rendered her unable to finish the routine. In spite of her injury, in the qualification round, Liukin's bars set earned a 16.2, the highest score of any competitor on any apparatus in the meet. Liukin also qualified for the event finals on bars, where she took a small step on her dismount and finished with a 16.05, earning a silver medal behind Britain's Beth Tweddle.
In spite of a 16.100 on bars, the highest score of the day from any competitor on any event, she finished the competition in fifth place.