A standout for two full seasons with the New York Rangers from 1932 to 1934, Aikenhead took over the starting job from John Ross Roach and for two years was a solid if unspectacular netminder. He had played ten years in various minor leagues out west, most notably appearing in the Allan Cup finals in 1924 and 1926 with Saskatoon.
Aitkenhead's rookie season of 1932-33 was a Stanley Cup-winning one as he played all eight games for the Broadway Blueshirts, winning six and recording two shutouts en route to the championship in four games over Toronto. At 29, Aitkenhead looked set to be the team's goalie of the future.
After playing every game of the following season, though, the team was eliminated from the playoffs quickly and he lost the starter's job the next season to Davey Kerr. Aitkenhead played just ten games, and spent the next six seasons in the PCHL, retiring in 1941.