A method and kit for treating fractures in a subject entailing placing a temporary fixation device containing a wire in a percutaneous manner across a fracture line, drilling across the fracture line and delivering a biological agent. The biological device is delivered through an injection device which may be the same as the drilling device or different therefrom. The biological agent is delivered uniformly across the complete fractured bone and to the contralateral surface of the fractured bone through an injection device. The method may comprise additional steps of sliding a cannula over the fixation device and affixing the cannula to an outer surface of the fracture. In this embodiment, the drilling device, and later the injection device are placed within the cannula.