Influence Of Lumbar Curvature On Adjacent Segments After Lumbar Fusion

Objective: To explore the influence of lumbar curvature on adjacent segments after lumbar fusion and the pathogenesis of adjacent segment disease.Methods:A retrospective analysis of 130 patients who underwent posterior lumbar spine fusion and internal fixation for spinal surgery at the First Affiliated Hospital of Xinjiang Medical University from January 2014 to January 2016.All patients had varying degrees of lower back pain,With or without radiation pain in the nerves of the lower limbs,muscle weakness or paresthesia in the lower limbs.The changes in lumbar curvature before and after the last follow-up were measured respectively.The loss of lumbar curvature loss less than or equal to 5 ° was divided into group A,and the loss of angle greater than 5 ° was divided into group B.The occurrence of ASD between the two groups was compared to explore the lumbar curvature The effect of changes in degree on ASD.Result:All patients successfully completed the operation.Group A: the average age was 54.35 ± 13.1 years,the average follow-up time was 4.24 ± 0.8 years,and the height of the intervertebral space of adjacent segments was 8.93±1.3 mm before surgery and 8.46±1.1mm at the last follow-up;Group B: The average age was 59.29 ± 10.Years,and the average follow-up time was 4.38 ± 0.7 years.The height of the intervertebral space of the adjacent segment was: 8.83±0.9mm before surgery and 8.07±0.8mm at the last follow-up.Conclusion:The change of lumbar curvature is related to ASD after lumbar fusion.Considering that the retrospective study of this study is limited sample size,it is still necessary to carry out large-scale randomized controlled study to further verify the results of this study.