A surgical device for performing surgery includes a handle assembly, an elongate member extending from the handle assembly, an articulation mechanism, and an adapter. The elongate member has articulating and straight sections. The articulating section is configured to articulate with respect to the straight section. The adapter rotatably couples the elongate member with the articulation mechanism such that when the elongate member is in a first rotational orientation with respect to the articulation mechanism, the articulating section articulates toward a first direction relative to the straight section upon movement of the handle assembly towards the first direction with respect to the straight section and when the elongate member is in a second rotational orientation with respect to the articulation mechanism, the articulating section articulates toward a second direction relative to the straight section upon movement of the handle assembly towards the first direction with respect to the straight section.
