Effect of minimally invasive pedicle screw fixation on Cobb′s angle and anterior vertebral height in patients with traumatic thoracolumbar spinal fractures
LI Rong-jun1 ZHANG Meng2
1.Department of Orthopedics,Dalian Second People′s Hospital,Liaoning Province,Dalian 116011,China;
2.Department of Orthopedics,Zhongshan Hospital Affiliated to Dalian University,Liaoning Province,Dalian 116001,China
Abstract：Objective To investigate the effect of minimally invasive pedicle screw fixation(MIPSF)on Cobb′s angle and anterior vertebral height(AVH)in patients with traumatic thoracolumbar spinal fractures(TTSF).Methods A total of 80 patients with TTSF treated in Dalian Second People′s Hospital from August 2017 to December 2019 were selected,the patients were divided into the control and the study group according to different surgical procedures,40 cases in each group.Patients in the control group were treated with traditional open pedicle screw fixation,while patients in the study group were treated with MIPSF.Cobb′s angle,AVH,clinical indicators,visual analogue scale(VAS)score,lumbar function and postoperative complications were compared between the two groups.Results There were no significant differences in the Cobb′s angle or AVH between the two groups before surgery(P＞0.05).At 6 months after surgery,the Cobb′s angle of the two groups were less than before surgery,AVH of the two groups were greater than before surgery,the differences were statistically significant(P＜0.05);but there were no significant differences between the two groups(P＞0.05).The operative time and hospital stay of the study group were shorter than those of the control group,the length of surgical incision of the study group was shorter than that of the control group,the amount of blood loss and the volume of drainage in the study group were less than that in the control group,the differences were statistically significant(P＜0.05).There were no significant differences in VAS score and Japanese Orthopedic Association(JOA)score of lumbar function between the two groups before surgery(P＞0.05).At one week and two months after surgery,and the VAS score were lower than before surgery,lumbar spine function JOA score were higher than before surgery,VAS score in the study group was lower than that in the control group,and JOA score in the study group was higher than that in the control group,the differences were statistically significant(P＜0.05).The total incidence of surgical incision infection,internal fixation displacement,bone nonunion and vascular and nerve injury in the study group was 7.5%,lower than that of the control group accounting for 32.5%,the difference was statistically significant(P＜0.05).Conclusion MIPSF for TTSF can effectively improve the reducing Cobb′s angle and AVH,improve the clinical indicators,promote the functional recovery of the lumbar spine and reduce postoperative complications,and is worthy of clinical promotion and application.
Shuo F，Wei T，Sun Y，et al.Effect of Robot-Assisted Surgery on Lumbar Pedicle Screw Internal Fixation in Patients with Osteoporosis[J].World Neurosurg，2019，125：e1057-e1062.
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