Comparison Of The Outcomes Of Two Posterior Techniques In The Treatment Of Ossification Of Posterior Longitudinal Ligament In Cervical Spine

Objective: To compare the clinical effects of two posterior approaches in the treatment of ossification of the posterior longitudinal ligament in cervical spine.Methods: 72 patients with ossification of cervical posterior longitudinal ligament who were operated in our hospital from February 2017 to February 2019 were collected retrospectively.According to the different operation methods,the patients were divided into two groups: group A with single open door laminoplasty and group B with posterior laminectomy and lateral mass screw fixation.There were 40 patients in group A,including 24 males and 16 females with an average age of 50.4±8.12 years.There were 32 patients in group B,including 19 males and 13 females,with an average age of 48.3 ± 9.36 years.Each patient was followed up for at least one year.The perioperative parameters,JOA score,VAS score,cervical curvature index(CCI)and postoperative complications were compared.Results: The operation time and bleeding volume of group A were less than that of group B(P < 0.05).There was no significant difference in the length of stay between the two groups(P > 0.05).The JOA score and VAS score of the two groups were significantly improved after operation(P < 0.05),but there was no significant difference between the two groups(P >0.05).The incidence of axial symptoms and cervical 5 nerve root palsy in group A was lower than that in group B(P < 0.05),but the loss of CCI in group A was higher than that in group B(P < 0.05).Conclusion: both methods can effectively treat ossification of cervical posterior longitudinal ligament,but the incidence of axial symptoms and cervical 5 nerve root palsy in group A is lower,and group B can better maintain cervical curvature.