Luleå was on its way to victory in the summit when the accident occurred.
Petra Nieminen fell right behind teammate Ronja Savolainen who got stuck with her leg under Nieminen.
Savolainen got really hurt and lay on the ice and the Finnish star was led by the ice with the help of two teammates and went out into the locker room.
The event in Örnsköldsvik was otherwise largely characterized by two strong goalkeepers.
However, Luleå got a taste start when they took the lead just over nine minutes into the first period - at a numerical disadvantage.
Josefine Persson took advantage of carelessness in the Modo Defense.
grabbed the puck and served Noora Tulus.
The Finnish national team player thanked for the pass by cutting into the castle and distinctly shooting in 1-0.
The next goal, however, would be delayed.
Modo did not get a hole in Luleå's Sara Grahn and on the other side of the ice, Modo goalkeeper Klara Peslarova impressed.
The Czech saved 19 shots in the second period - but in the early third period she would have to capitulate again.
Luleå won a technical in the attack zone and Jenni Hiirikoski shot straight.
That shot saved Pleskarova, but Modo's goalkeeper did not get full control of the shot and Viivi Vainikka was able to shave the return into the open goal.
Modo had a great opportunity to score following a counterattack after 80 minutes, but Erica Rieder's shot from the left sailed high over the bar.
Luleå and Sara Grahn would continue to withstand the rest of the match and Luleå won 2-0.