Systems and methods are provided for assisting in the height restoration of a collapsed vertebral member, such as a vertebral body or a disc. The systems can include one or more modular spacers that are capable of being positioned within the vertebral member on their anterior and/or posterior surfaces, or on their superior and/or inferior surfaces. The methods can include forming an incision through the vertebral body and inserting one or more modular spacers through the vertebral body in a stacked configuration. The one or more modular spacers can provide a structural framework within the vertebral member and can help restore the height of the collapsed vertebral member. A bone filler material, such as a bone cement, can be injected within and around the modular spacers.