Abstract: A universal modular external fixation system for immobilizing bone fragments in long bone fractures. The universal modular external fixation system includes a frame assembly comprising a plurality of pins designed to be coupled to various portions of a fractured bone. The external sections of the pins are fixated to a variety of different coupling devices designed to attach to a series of connecting bars along the length of the fractured bone. A plurality of connecting members interconnect the connecting bars thereby securing the pins and thus the bone sections to aid in proper healing of the fracture(s).