A surgical system, comprising: a surgical instrument, including: a housing; a shaft extending distally from the housing; and an end effector assembly disposed at a distal end of the shaft; and an energizable surgical attachment configured for positioning about the shaft of the surgical instrument, the energizable surgical attachment comprising: an outer sheath defining a proximal end and a distal end and including an internal surface defining a lumen extending longitudinally through the outer sheath, the outer sheath configured to positioning about the shaft of the surgical instrument; an energizable rod member coupled to the outer sheath, at least a portion of the energizable rod member extending distally from the distal end of the outer sheath; a connector attachment disposed towards the proximal end of the outer sheath, the connector attachment electrically coupled to the energizable rod member; and characterised by at least one o-ring disposed within the lumen of the outer sheath and coupled to the internal surface of the outer sheath, the at least one o-ring configured to establish a fluid-tight seal between the outer sheath and the shaft of the surgical instrument and to bias the outer sheath towards a stationary position relative to the shaft of the surgical instrument; wherein the energizable surgical attachment is movable relative to the surgical instrument between a retracted position, wherein the energizable surgical attachment is disposed proximally of the end effector assembly, and a deployed position, wherein the outer sheath is disposed about the end effector assembly and the energizable rod member extends distally beyond the distal end of the end effector assembly; and wherein the outer sheath is rotatable relative to the shaft. a surgical instrument, including: a housing; a shaft extending distally from the housing; and an end effector assembly disposed at a distal end of the shaft; and a housing; a shaft extending distally from the housing; and an end effector assembly disposed at a distal end of the shaft; and an energizable surgical attachment configured for positioning about the shaft of the surgical instrument, the energizable surgical attachment comprising: an outer sheath defining a proximal end and a distal end and including an internal surface defining a lumen extending longitudinally through the outer sheath, the outer sheath configured to positioning about the shaft of the surgical instrument; an energizable rod member coupled to the outer sheath, at least a portion of the energizable rod member extending distally from the distal end of the outer sheath; a connector attachment disposed towards the proximal end of the outer sheath, the connector attachment electrically coupled to the energizable rod member; and characterised by at least one o-ring disposed within the lumen of the outer sheath and coupled to the internal surface of the outer sheath, the at least one o-ring configured to establish a fluid-tight seal between the outer sheath and the shaft of the surgical instrument and to bias the outer sheath towards a stationary position relative to the shaft of the surgical instrument; wherein the energizable surgical attachment is movable relative to the surgical instrument between a retracted position, wherein the energizable surgical attachment is disposed proximally of the end effector assembly, and a deployed position, wherein the outer sheath is disposed about the end effector assembly and the energizable rod member extends distally beyond the distal end of the end effector assembly; and wherein the outer sheath is rotatable relative to the shaft. an outer sheath defining a proximal end and a distal end and including an internal surface defining a lumen extending longitudinally through the outer sheath, the outer sheath configured to positioning about the shaft of the surgical instrument; an energizable rod member coupled to the outer sheath, at least a portion of the energizable rod member extending distally from the distal end of the outer sheath; a connector attachment disposed towards the proximal end of the outer sheath, the connector attachment electrically coupled to the energizable rod member; and characterised by at least one o-ring disposed within the lumen of the outer sheath and coupled to the internal surface of the outer sheath, the at least one o-ring configured to establish a fluid-tight seal between the outer sheath and the shaft of the surgical instrument and to bias the outer sheath towards a stationary position relative to the shaft of the surgical instrument; wherein the energizable surgical attachment is movable relative to the surgical instrument between a retracted position, wherein the energizable surgical attachment is disposed proximally of the end effector assembly, and a deployed position, wherein the outer sheath is disposed about the end effector assembly and the energizable rod member extends distally beyond the distal end of the end effector assembly; and wherein the outer sheath is rotatable relative to the shaft.