Dynamic Screw Systems are useful in proximal and distal femoral fractures, and convey advantages over fixed angle devices. Improved proximal fragment fixation, controlled fracture impaction and a "forgiveness" with respect to axial alignment of the side plate to bone are improvements over fixed angle devices. Image intensifiers are often required to aid lag screw alignment when these devices are used. The equipments are expensive and often not available in some regions of the developing world. There is also the risk of radiation exposure to the surgical team.