Clinical study of treating thoracolumbar fracture and dislocation by pedicle screw rod internal fixation

ZHANG Qin-xin

doi:10.3969/j.issn.1674-3806.2015.04.13

Abstract：Objective To investigate the clinical curative effect of treating thoracolumbar fracture and dislo-cation with pedicle screw rod internal fixation .Methods Fifty patients with thoracolumbar fracture and dislocation were collected , who were treated with pedicle screw rod fixation .The condition of spinal cord injury recovery , the percentage of anterior and posterior edge height of disease vertebral , the occurrence of complications and the condition of Cobb angle recovery were observed before internal fixation , at immediate after internal fixation and at a followed-up of 12 months.Results Fifty patients were followed up for 12 months.The percentage of anterior and posterior edge height of disease vertebrae at immediate after fixation , at a followed-up of 12 months were increased evidently than those before fixation ( P<0.01 ) , the Cobb angle was decreased obviously than before fixation ( P<0.01 ) .Between the time points at immediate after fixation and at a followed-up of 12 months, the percentage of anterior or posterior edge height of disease vertebra and Cobb angle had no significant differences ( P>0.05 ) .Before internal fixation , the spinal cord injury mainly distributed at B level , C level, but at immediate after internal fixation and at a followed-up of 12 months after internal fixation , they distributed mainly in D level and E level , anterior spinal cord injury distri-bution at instant after internal fixation and at a followed-up of 12 months after internal fixation had significant differ-ence from that before internal fixation ( P<0.01 ) , and between the time point at immediate after internal fixation and the time point at 12 months followed-up after internal fixation , the distribution of spinal cord injury had no significant differences(P>0.05).Conclusion For patients with thoracolumbar fracture and dislocation , pedicle screw rod in-ternal fixation can effectively restore vertebral height and promote injured spinal nerve function .