Comparison Of Clinical Results Between Percutaneous And Traditional Open Pedicle Screw Fixation For The Treatment Of Single Segment Thoracolumbar Vertebral Fractures

Backgroud: The pedicle screw fixation system can effectively achieve the three column fixation of the spine and reconstruction of the spinal stability.The traditional open surgery of thoracolumbar fractures requires extensive traction and paraspinal muscles stripping,which results in the occurrence of chronic pain in the back.With the development of minimally invasive spinal surgery techniques,percutaneous pedicle screw fixation has become mature,which provides a new treatment for patients with thoracolumbar fractures.Objective: To compare the clinical effects and safety of percutaneous pedicle screw fixation and traditional open surgery for the treatment of a single segment thoracolumbar vertebral fracturesMethods: Retrospective study of 15 patients with thoracolumbar fractures without spinal cord or nerve injury from May 2014 to October 2016,all of which were single segmental vertebral fracture and treated by percutaneous pedicle screw fixation.15 cases of the same period in the control group were treated in normally open reduction and internal fixation.The clinical and image parameters and postoperative pain assessment of two groups were compared between groups.Results: No patients suffered from postoperative infection,internal fixation loosening or breakage nerve injury or other complications.There were significant differences in blood loss 、postoperative drainage and hospital stay between groups(P<0.05),but there were no significant differences between two groups in operation time(P>0.05);Postoperative pain was significantly reduced in the group with percutaneous pedicle screw fixation,and there were significant differences in two groups 1 month after operation(P<0.05),but no difference existed 3 months after operation(P>0.05).Kyphosis Cobb angle are recovered obviously after surgery(P<0.05),but no differences between two groups(P>0.05).There were no difference in radiographic vertebral height between two groups(P>0.05)Conclusions: Minimally invasive percutaneous pedicle screw fixation technology has the characteristics of less injury、less blood loss、less postoperative pain、quicker recovery,and it is an effective method for the single segment thoracolumbar fractures without neurological injury.