Objective To retrospectively analyze clinical effect of pedicle screw internal fixation through the injured vertebra for treating single-level thoracolumbar bursting fracture in the quadrant expansive channel combined with the muscular gap (wiltse) approach.Methods From January 2014 to January 2017，48 cases of single-level thoracolumbar bursting fracture were treated with 2 rods and 6 screws in 6 vetebra including the injured vetebra through the quadrant expansive channel with Wiltse approach.According to AO classification，there were 29 cases of type A 3.1 and 19 cases of type A 3.2.Spinal nerve function were all Frankel E.10 months after operation，the internal fixation were explanted.Clinical effect was evaluated by observing the vertebral anterior height，kyphosis，VAS and JOA score changes before and after operation.Results All cases were followed up for 12 to 42 months with an average of 25.5 months.The anterior height of vertebral body recovered well(P＜0.05)immediately after operation.And kyphosis was improved significantly(P＜0.05).The VAS score was improved from 6.5 points to 2.3 points，and the JOA score increased from 13.38 points to 16.85 points.Screw position and stability was good.No injury of spinal cord function was found.Conclusion The quadrant expansive channel combined with Wiltse approach by the injured vertebral set screw in the treatment of single thoracolumbar bursting fracture has the advantages of simple operation，less trauma，accurate screw entrance point，fast recovery after operation，and has satifying effect.
李四波，陈晓春，姜海涛，顾小华 *. Quadrant通道下经Wiltse入路治疗胸腰段单椎体爆裂性骨折临床疗效分析[J]. 实用骨科杂志, 2018, 24(12): 1057-1060.
Li Sibo，Chen Xiaochun，Jiang Haitao，et al. Retrospective Study of the Clinical Effect of Quadrant Channels through Wiltse Approach in Treatment of Single-level Thoracolumbar Bursting Fractures. sygkzz, 2018, 24(12): 1057-1060.
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