A surgical instrument includes a housing, an energizable member selectively deployable relative to the housing, and a deployment mechanism. The deployment mechanism includes a fixed gear rotatable in opposite directions to move the energizable member between the deployed and storage positions. The deployment mechanism further includes an actuator assembly having a first actuator and a first gear, and a reversing assembly. The actuator assembly is movable relative to the fixed gear between an engaged position and a spaced-apart position. The reversing assembly includes a second actuator and a second gear that is movable between a removed position, wherein the first gear is disposed in the engaged position and the second gear is disengaged from the first gear and the fixed gear, and an inserted position, wherein the first gear is moved to the spaced-apart position and the second gear is engaged between the first gear and the fixed gear.