The injury required immediate surgery from Dr. Charles Goldfarb, Dr. Rick Wright and Dr. Matt Smith of Washington University Orthopedics and Barnes Jewish Hospital.
Before the injury, Edmundson had played in 56 games this season and had already set a new career high with six goals and a career-best 15 points.
"Eddie adds a lot for our group. A big, physical presence - a guy that's really hard to play against," Blues Head Coach Mike Yeo said. "He's a warrior for us. He goes out, he competes hard every night and lays it on the line for us. He's a guy you can trust and you know he's going to give you everything he's got."
"The coaches have been doing a good job of putting me in some situations in practice that make me feel comfortable playing physical, playing my game again," Edmundson said. "I feel good and I'm excited to get back out there…. I think the next 12 or 13 games, every game is going to be a playoff mentality. We're making that push for a wild card and playoff spot, so we know we have to take every game as if its a playoff game. In our dressing room, all the boys are excited for that challenge and I'm excited to hop in and help the boys out."