Stamkos said he's happy with the progress he has made to this point.
"It's been a long process," he said. "It was 4-6 months with four months really out of the question at the beginning. We're past that now. First full skate today. Nice to get out with the guys, participated fully. Lots of hard work behind the scenes just to get to this point. Just continue to do the same."
Stamkos said the Lightning's push for a spot in the Stanley Cup Playoffs has been motivating him. They're 6-2-1 in their past nine games and are one point behind the Toronto Maple Leafs for the second wild card from the Eastern Conference with 12 games remaining. Tampa Bay next plays at home against the Washington Capitals on Saturday (7 p.m. ET; SUN, CSN-DC, NHL.TV).
"It's been encouraging," Stamkos said. "Hopefully the guys can continue to play well. That's helping the process too, just being around this group that has put the last quarter of the season together that a lot of people counted us out of being in the mix. It's definitely helped with the process."
Stamkos said the key to his return will be when he doesn't have any uncomfortable moments on the ice. He has dealt with serious injuries before; he missed 45 games in 2013-14 with a broken tibia, and missed five regular-season games and 16 Stanley Cup Playoff games last season with thoracic outlet syndrome.
He said he thought his most recent injury was minor until an MRI revealed its extent.