Therapeutic Effect Of Posterior Approach With Single-segment Pedicle Screw Fixation On The Injured Vertebrae Of Patients With Thoracolumbar Fracture

Objective: To study the effect of posterior approach pedicle screw fixation on patients with thoracolumbar fractures.To investigate the difference between the treatment of tran-spedicular single segment and short segment pedicle screw in the treatment of thoracolumbar fractures.Methods: A total of 56 patients with thoracolumbar fractures treated in2014-2017 were treated,28 p atients were treated with a single segment of the injured vertebrae,and 28 patients were treated with a short segment of the injured vertebra.The two groups were followed up for 12-15 months.The data were compared by measuring the changes before and after Cobb angle surgery,the height of compression of the vertebral body before operation,the time of surgery,the amount of blood loss,and the functional recovery of ASIA.Result: All patients underwent surgery successfully according to the two surgical procedures,and 12 to 15 months of follow-up were performed through outpatient review.One week after surgery,the vertebral column was not found to penetrate the vertebral body into the spinal canal.The internal fixation was firm,the compression rate of the injured vertebral body was satisfactory,and the Cobb angle was satisfactorily corrected.The pedicle screw and the connecting rod were not seen.Loose and broken.The postoperative long-term compression vertebral body height compression rate and Cobb angle were slightly lost after surgery,but still satisfactory recovery before surgery.During the follow-up,2cases of pedicle screw loosening and 1 case of screw were found in the single segment group.In the short segment group,1 case of pedicle screw loosening and 1 link rod fractured.There was no significant difference in the vertebral height compression rate between the two groups after operation and the final follow-up.However,compared with the post-injury,the vertebral height compression rate was significantly reduced,which was statistically significant.Cobb angles in the Cobb angle were significantly lower than those in the final follow-up,which was statistically significant.However,there was no statistical difference between the two groups.The single-segment group was smaller than the short-segment group in terms of surgery time and blood loss.The postoperative neurological Frankel grading was significantly different from that of the preoperative assessment,and the neurological function was effectively improved.Conclusion:1.Single-segment internal fixation and short-segment internal fixation for the treatment of single-segment fractures of the thoracolumbar can achieve satisfactory results in the height of the injured vertebrae and Cobb angle.2.The single-segment fixation of the injured vertebrae has a small wound,less bleeding,less time,and is economical.Only one segment is fixed,and the risk of degeneration of adjacent vertebral bodies is low.Single-segment pedicle screw fixation for the treatment of thoracolumbar single-segmental fractures with posterior approach has less surgical trauma,firm fixation,clear effect,economical application,good functional recovery,and low complication rate.Promote the application.However,it is necessary to strictly control the surgical indications.