Objective To investigate the clinical effect of double-plate self-locking interbody fusion cage(ROI-C)for treatment of continuous double-level cervical spondylotic myelopathy.Methods The 32 cases of continuous double-level cervical spondylotic myelopathy were treated with ROI-C.The operative time,intraoperative blood loss and post-operative complications were recorded.The recovery of spinal nerve function was evaluated by JOA scoring system.The percentage of vertebral space height and Cobb angle were measured and calculated.Results All patients were fol-lowed up for 12 months.The operative time was 60～115 min and the intraoperative blood loss was 20～150 ml.There were no postoperative complications such as incision infection,dysphagia,hoarseness and tracheoesophageal fistula.Postoperative radiographs showed that the height of the intervertebral space was basically returned to normal,the fusion cage was in position,and no obvious displacement or subsidence occurred.JOA score,percentage of intervertebral height and Cobb angle were all improved at 2 weeks,6,12 months after surgery than the preoperation(P＜0.05).Twelve months after surgery,the recovery of spinal nerve function was evaluated by JOA scoring system:12 cases were excellent,15 cases were good,5 cases were fair,and the rate of excellent and good was 27/32.Conclusions There are fewer complications and better recovery of vertebral space height,spinal nerve function and cervical curvature in the treatment of continuous double-level cervical spondylotic myelopathy with ROI-C.
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