A system for stabilizing a vertebral body, said system comprising: an access cannula comprising a hub portion and a cannula shaft, said cannula shaft including a proximal end and an opposing distal end positionable within the vertebral body, said cannula shaft defining a lumen along a longitudinal axis; an introducer device comprising: a telescoping introducer shaft (60, 660) coupled to a hub assembly (80, 680) and configured to be removably coupled to said hub portion of said access cannula, said telescoping introducer shaft having a plurality of shaft sections (62, 662) moveable between an extended position and a non-extended position with said plurality of shaft sections having a longer length in a longitudinal direction in said extended position and a shorter length in said non-extended position, said telescoping introducer shaft defining an internal bore (63, 663) extending along said longitudinal axis with said internal bore aligned with and in open communication with said lumen along said longitudinal axis when said telescoping introducer shaft is coupled to said hub portion of said access cannula; and a stylet within said internal bore of said telescoping introducer shaft of said introducer device, said stylet including a stylet shaft extending a length between a proximal end and a distal end and having a flexible distal portion near said distal end, said flexible distal portion comprising a pre-set curve in an unconstrained state and movable between said unconstrained state and a constrained state in which said flexible distal portion is substantially straight, wherein said flexible distal portion is in said constrained state when said flexible distal portion is contained within said internal bore when said telescoping introducer shaft is in said extended position, and wherein collapsing said telescoping introducer shaft from said extended position to said non-extended position moves said flexible distal portion of said stylet shaft from within said internal bore to within said lumen of said access cannula in said constrained state. an access cannula comprising a hub portion and a cannula shaft, said cannula shaft including a proximal end and an opposing distal end positionable within the vertebral body, said cannula shaft defining a lumen along a longitudinal axis; an introducer device comprising: a telescoping introducer shaft (60, 660) coupled to a hub assembly (80, 680) and configured to be removably coupled to said hub portion of said access cannula, said telescoping introducer shaft having a plurality of shaft sections (62, 662) moveable between an extended position and a non-extended position with said plurality of shaft sections having a longer length in a longitudinal direction in said extended position and a shorter length in said non-extended position, said telescoping introducer shaft defining an internal bore (63, 663) extending along said longitudinal axis with said internal bore aligned with and in open communication with said lumen along said longitudinal axis when said telescoping introducer shaft is coupled to said hub portion of said access cannula; and a stylet within said internal bore of said telescoping introducer shaft of said introducer device, said stylet including a stylet shaft extending a length between a proximal end and a distal end and having a flexible distal portion near said distal end, said flexible distal portion comprising a pre-set curve in an unconstrained state and movable between said unconstrained state and a constrained state in which said flexible distal portion is substantially straight, wherein said flexible distal portion is in said constrained state when said flexible distal portion is contained within said internal bore when said telescoping introducer shaft is in said extended position, and wherein collapsing said telescoping introducer shaft from said extended position to said non-extended position moves said flexible distal portion of said stylet shaft from within said internal bore to within said lumen of said access cannula in said constrained state.