Effects of posterior screw and rod fixation on nerve function and vertebral indicators in patients with lumbar vertebral fracture

Objective To observe the effects of posterior screw and rod fixation on nerve function and vertebral indicators in patients with lumbar vertebral fracture.Methods The clinical data of 32 cases with lumbar vertebral fracture were analyzed retrospectively.According to Frankle grading:grade A 1 case ;grade B 7 cases;grade C 12 cases ;grade D 12 cases.All the patients were treated by posterior screw and rod fixation.The nerve function and vertebral indicators were compared.Results Followed-up for 22.3 months,according to Frankle grading:grade A 1 case;grade B 3 cases;grade C 9 cases;grade D 15 cases;grade E 4 cases.The nerve functions were improved after operation.There was a significant difference between before and after treatment (all P ＜ 0.05).The the height of the front edge of the fractured vertebral and cobb angle were improved after operation (all P ＜ 0.01).Conclusion Posterior screw and rod fixation can significantly improve nerve function and vertebral indicators in patients with lumbar vertebral fracture. Key words: Spinal fractures ;  Lumbar vertebrae;  Fracture fixation, internal;  Nerve function