Influence of number of fixed segments in patients with AO-C type thoracolumbar fracture and dislocation treated with posterior pedicle screw internal fixation
LI Hong-jiu
ZHANG Xiao-hui
ZHU Wen-xiao
LI Zhi-wei
Abstract：Objective To explore the influence of number of fixed segments on effects of patients with AO-C type thoracolumbar fracture and dislocation treated with posterior pedicle screw internal fixation .Methods To-tally 90 patients with AO-C type thoracolumbar fracture and dislocation (Ⅱ degree and above) treated in our hospital from Jan.2013 to Jun.2016 were selected.They were divided into observation group (45 cases) and control group (45 cases).The observation group was given pedicle screw fixation (8 screws,4 segments); while the control group was given pedicle screw fixation (6 screws,3 segments).The clinical data such as general condition ,neurological function recovery,vertebral height compression ratio ,Cobb angle,surgical effect and complications was compared be-tween the two groups.Results There was no significant difference in operation time ,blood loss and postoperative hospital stay between the two groups (P＞0.05).There was no significant difference in vertebral height compression ratio and Cobb angle between the two groups one week after surgery (P＞0.05); the vertebral height compression ratio of the observation group was higher than that of the control group ,and the Cobb angle of the observation group was low-er than that of the control group (P＜0.05).The proportion of reduction,efficiency of treatment and recovery of neuro-logical function of the observation group was higher than those of the control group (P＜0.05).Conclusion For AO-C type thoracolumbar fracture and dislocation of type Ⅱ and above ,8 screws and 4 segments can provide more overall stability of spine compared with pedicle screw fixation with 6 screws and 3 segments.
Keywords：thoracolumbar fracturedislocationinternal fixationsegment
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 439-442 )