The goal of the treatment of the unstable thoracolumbar injuries is optimizing neural decompression while providing stable internal fixation over the least number of spinal segments. Either anterior, posterior or both approaches is less extensive. Pedicle screw device allows immediate stable fixation as the screw traverse all the three columns. Screw passed one level above and one level below the fractured vertebra via posterior approach. All the patients were initially assessed in the outpatient department or casualty according to their presentation and then they underwent a detailed evaluation of their hemodynamic, spine, neurological status and other injuries if associated with trauma. The patients and their attendant were interviewed, their epidemiological, historical, subjective and physical findings were noted. In this study Mean value for total hospital stay was 29.23 days in conventional method and 28.38 days in navigation method. In our study we had 2(15.39%) patients with malplacement of pedicle screw with lateral and medial pedicle cortex breach and 01 (7.69%) patient with wound infection, were noted in conventional method and had01(7.69%) patients with malplacement of pedicle screw with lateral pedicle cortex breach and 01 patient with wound infection, were noted in navigation method. No neurologic complications were noted in the patient with misplacement of screws.