A surgical instrument includes an end effector assembly defining a feed-in side. The end effector assembly includes first and second rotatable gear members positioned adjacent one another to define a gap therebetween. When the first and second gear members are rotated, tissue positioned adjacent the feed-in side of the end effector assembly is engaged by the first and second gear members and is fed into the gap between the first and second gear members for one or both of sealing and dividing tissue disposed between the first and second gear members.