TRANSPEDICULAR AUGMENTATION WITH BETA- TRICALCIUM PHOSPHATE AND CALCIUM SULFATE AND SHORT SEGMENT FIXATION IN TRAUMATIC THORACOLUMBAR BURST FRACTURE-A PROSPECTIVE STUDY

Study Design: A prospective study was conducted from November 2021 to March 2024. Purpose: Posterior short-segment stabilization for thoracolumbar burst fractures is recognized for its high incidence of implant failure caused by inadequate anterior support. This research aimed to examine the effectiveness of short-segment transpedicular fixation combined with anterior augmentation using tricalcium phosphate and calcium sulfate hemihydrate grafting. Thoracolumbar Burst fractures were treated by distraction and ligament Overview of Literature: otaxis with traditional pedicle screw instrumentation allowed indirect reduction and kyphosis correction. However, there is a chance of frequent failure to support the anterior spinal column, which ultimately causes loss of correction. Transpedicular intracorporeal grafting with autogenous bone graft and artificial graft substitutes has been used to promote vertebral fracture healing and maintain vertebral height, Patients with single- Methods: level thoracolumbar burst fractures undergoing short-segment fixation and completed at least one year of follow-up were included. Thirty-one patients with single-level thoracolumbar fracture underwent posterior short-segment pedicle screws fixation and transpedicular tricalcium phosphate and calcium sulfate hemihydrate grafting. The anterior vertebral height ratio, anterior vertebral height compression ratio of the fractured vertebra, vertebral wedge angle, and canal encroachment ratio were recorded during the follow-up period. Thirty-one patients were Results: followed up for at least 12 months. The kyphotic angle improved from an average of 10.7° to -3.59°. Anterior vertebral height was corrected from a preoperative average of 42.3% to 64%. One patient experienced a loss of correction exceeding 10°. Th Conclusions: e results' analysis indicated that this technique effectively corrects deformities, restores vertebral height, prevents early implant failure, and provides satisfactory results.