Clinical Research On Comparison Of Therapeutic Effects Between Anterior And Posterior Surgery In Multilevel Cervical Spondylotic Myelopathy

Objective：To compare retrospectively the therapeutic effects between anterior andposterior surgery in multilevel cervical spondylotic myelopathy（CSM） with3or moresegments.Methods:Analyse40cases with multilevel CSM from2000to2013.20patents wereoperated from anterior approach， selectively decompress and bone grating with plate fixedand Titanium Mesh Cages（group A）.20cases were operated from posterior approach，withmon-open-door vertebral canal expansing laminoplasty （group B）. All patents were scoredwith JOA evaluating system and calculated the recovery rate as well.Results:The follow-up period were3months to nearly2years.There were there weresignificant difference in the two groups（P<0.05）， group A was higher than group B.Conclusion:Both of operating methods were effective operations to therapia multilevelCSM， however， the therapeutic effects of anterior approach were better than posteriorapproach.