A portable surgical robot includes a surgical device and a cart. The surgical device is coupled to the cart. The cart includes a chassis, a frame member, a pair of wheels, and a steering mechanism. The chassis defines a longitudinal axis that extends a length of the cart. The frame member is coupled to the chassis of the cart. The pair of wheels are pivotably coupled to the frame member. The steering mechanism is coupled to the pair of wheels. The steering mechanism is configured to facilitate selectively pivoting the pair of wheels to steer the cart in a plurality of steering modes. The plurality of steering modes include at least one of a fore-and-aft steering mode, a turn-on-axis steering mode, and a lateral steering mode.
