Results Analyse Of Posterior Pedicle Screw And Lumbar Interbody Fusion Treating Lumbar Spinal Instability

Objective: To observe the surgical results of lumbar spinal instability treated by posterior pedicle screw and lumbar interbody fusion and analyse the correlative affecting factors. Method: 62 caess of lumbar spinal instability treated by posteriorpedicle screw and lumbar interbody fusion in recent 5 years were collected in this study. According to the clinical outcome of preoperation, ten-week and the twelve-month postoperation incording the scores of JOA 29 score method and radiological studies (incording: disc space height,the amount of sagittal rotation observed between the extremes of movement and fusion rate)were writed down to analyse the surgical results. Cases were divided into two groups (excellent group and good group) which were according to the rate of melioration to analyse the factors that affected the surgical results. Result: JOA scores of preoperation, two-month and twelve-month after operation were increased obviously,the disc space height was also significantly retrieved and the regress of the amount of sagittal rotation was attained. It showed that the surgical results of posterior pedicle screw and lumbar interbody fusion treating lumbar spinal instability were opositive. Patients in the eximious group showed yonger ages, shorter duration symptoms and greater preoperative JOA scores. Conclusion: The postoperation and long-term results of surgical treatment on lumbar spinal instability with posterior pedicle screw and lumbar interbody fusion are definite. The patient ages, duration of symptoms and preoperative JOA score can influence the treatment results.