Systems for augmenting of a vertebral body by providing for relative movement of a deformable conduit

Systems for augmenting a vertebral body. A deformable conduit assembly includes a hub defining an opening, and a deformable conduit within which a steering instrument is removably disposed. The deformable conduit may be curved by the steering instrument. An expandable member assembly includes a catheter tube slidably positioned through the opening of the hub and a cannula handle of an access cannula, and an expandable structure. The deformable conduit may be moved proximally relative to the hub and the expandable member assembly to expose the expandable structure within the vertebral body. The hub may define one or more guiding slots though which one or more arms are slidably positioned. An axial controller may be coupled to a proximal end of the deformable conduit. The axial controller is configured to receive an input to expose the expandable structure by moving the deformable conduit relative to the hub and the access cannula.