[3] Káňa spent the majority of his contract with the Blues' second tier affiliate, the Alaska Aces of the ECHL.
On December 8, 2009, Tomas was traded by St. Louis, along with Brendan Bell, to the Columbus Blue Jackets for Pascal Pelletier.
With newfound confidence Káňa was recalled to the Blue Jackets at the end of the 2009–10 season and made his NHL debut in a 3-2 victory over the Tampa Bay Lightning on March 30, 2010.
[5] He later recorded his first career NHL points, both assists, in a 4-3 defeat to the Detroit Red Wings on April 7, 2010.
[6] On June 6, 2011, Kana signed a two-year contract to return to his original Czech team HC Vitkovice.