Background: To assess the functional outcome of the patients managed with the primary fixation using rail road system in compound fracture of tibia. Material & methods: The present study was undertaken for assessing the functional outcomes of rail road fixator as a primary mode of fixation in compound tibia fractures. Examination for any peripheral nerve injury was done. After the primary management, we prepared the patient for surgical intervention. All patients were taken for immediate surgical debridement with removal of all dead necrotic tissues, removing the free loose bone pieces, followed by stabilization of the fracture with application of LRS system, under spinal anesthesia under a tourniquet and image intensifier in the supine position. Postoperative follow-up was done. All the results were subjected to analysis by SPSS software. Results: Mean time of fracture union was 28.5 weeks. According to Modified Johner and Wruh’s criteria, excellent results were seen in 90 percent of the patients while good results were seen in 10 percent of the patients. 10 percent of the patients showed fair results. Overall complications were seen in 2 patients. One patient showed pin tract infection and one patient showed surgical site infection. Conclusion: LRS is a simple and easy system which can be used for all open fractures. Fixation with LRS is a single definitive surgery.