Abstract
Objective To analyze the efficacy of fixation with screws via the broken vertebra versus that of the procedure beyond the broken vertebra for thoracolumbar burst fractures. Methods 91 patients with thoracolumbar burst fractures underwent posterior pedicle screw fixation ( PPSF ) via ( 43 patients ) or beyond ( 48 patients ) the broken vertebra. Pain visual analogue scale ( VAS ) scores,vertebral compression ratio and Cobb's angle were used to evaluate the changes before the procedure and at week 2 and months 3 and 6. Results All the patients were followed-up for 6 to 24 months. There were no signi?cant differences in VAS scores, vertebral compression ratio and Cobb's angle between the two groups before surgery and at week 2 ( P＞ 0.05 ). The VAS scores, vertebral compression ratio, and Cobb's angle differed significantly between the two group at months 3 and 6 ( P＜ 0.01 ). Conclusions Posterior pedicle screw fixation via the broken vertibra is safer and more effective. It can secure the stability of internal fixation and reduce the postoperative complications, and has a long-term efficacy. Key words: Broken vertebra; Pedicle screw fixation; Thoracolumbar vertebra; Burst fracture
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