Instruments and methods for reducing and stabilizing bone fractures are presented. One method provides for cutting a portion of a bone having a fracture to create a cavity, wherein the cavity is substantially axisymmetric, and expanding the volume of the cavity thereby reducing the fracture. The fracture may be further reduced and/or stabilized by adding a material, such as an implant, in-situ curable material and/or in-situ hardenable material.
