Abstract
There have been reports of implants for three-level Anterior Cervical Discectomy and Fusion (ACDF) for treating multilevel Cervical Spondylotic Myelopathy (CSM), such as the cylinder-type, plate, screw fixation type, and hybrid with cervical disc replacement (CDR). However, there have been no reports using stand-alone titanium coated PEEK cage (ROI-C®). This report investigates the effectiveness and postoperative alignment changes of a three-level ACDF using the ROI-C® and presents findings based on literature review. The study involved seven patients who underwent the three-level ACDF surgery at our institution from April 2021 to January 2022. Evaluation criteria included JOA scores, various X-ray parameters, and the presence of cage subsidence. As a result, JOA scores for upper limb movement and sensation significantly improved; and postoperatively, C7 slope significantly increased in X-ray parameters. Cage subsidence was observed, but no implant damage was found. Postoperative outcomes of this surgical procedure were favorable. The results also suggest that the C7 slope may be a useful parameter for predicting therapeutic effects in anterior cervical spine surgery.
