Background: The present study was undertaken for assessing the functional outcomes of rail road fixator as a primary mode of fixation in compound tibia fractures. Materials & methods: A total of 20 patients were enrolled. Complete demographic and clinical details of all the patients was obtained. Thorough examination was done to rule out other systemic injury like head injury, cardiorespiratory and abdominal status. Patients with hypovolaemic shock were treated with IV fluids like plasma expanders, dextrose, normal saline, ringer lactate solution. In our series, compound middle onethird fracture both bones of leg were more common. Slightly common on right side than the left leg. Application of Rail external fixator was carried out in major OT after investigations. Follow-up was done and results were analyzed. Results: The mean time of full weight bearing post operative was 6.3 days.50 percent of the patients, time of fracture union was 24 weeks to 30 weeks, while in 40 percent of the patients; time to fracture union was 31 to 35 weeks. Mean time of fracture union was 32.3 weeks.In our study Overall complications were seen in 3 patients. Conclusion: LRS is a simple and easy system which can be used for all open fractures. Fixation with LRS is a single definitive surgery. It is a cost-effective mode of treatment. Patient is independent and walks full weight bearing without walking aids.