Colorado Avalanche forward Jamie McGinn could be out for the remainder of the season after undergoing back surgery Wednesday, head coach Patrick Roy told reporters.

McGinn's season isn't officially over, but he'll be significantly limited in the initial stage of his recovery.

"For the next six weeks he won't do much," Roy said.

McGinn has already been sidelined for nearly a month with what was originally diagnosed as a back strain.

The eight-year pro, coming off a career season, scored four goals and six points for the Avalanche before suffering the injury.