Comparison of the Efficacy of Two Zero-Notch Interbody Fusion Devices on the Treatment of Single-Level Cervical Spondylotic Myelopathy
Objective:To compare the clinical efficacy of double-insert self-stable interbody fusion cage(ROI-C)and bidi-rectional zero-profile interbody fusion cage(Zero-P)in anterior cervical decompression and internal fixation(ACDF).Methods:From January 2018 to January 2023,65 patients with single-level cervical spondylotic myelopathy underwent ACDF surgery were retrospectively analyzed.The ROI-C treatment group 35 cases,the Zero-P treatment group 30 cases.The blood loss,operation time,preoperative and postoperative visual analogue scale(VAS),Japanese Orthopaedic Associ-ation(JOA)and neck disability index(NDI)scores were compared between the two groups.Assessment of postoperative dysphagia and assess vertebral fusion.Results:For single segment ACDF surgery,65 patients were performed complete follow-up of 1 year.The comparative study found that the operation time of ROI-C group was significantly shorter than that of Zero-P group at C3/4 and C6/7 segments(P＜0.05),and there was no significant difference in the operation time of other segments.Two groups of patients with postoperative VAS scores,JOA scores were obviously improved compared with preoperative,there was no statisti-cally significant difference between the two groups(P＞0.05).ROI-C group,the incidence of postoperatie dysphagia at 1/35,Zero-P group is 1/30,there was no statistically significant difference between the two groups.At last follow-up,according to Bridwell fusion evaluation criteria,the target space of cervical spine in ROI-C group and Zero-P group fused.Conclusion:The two zero-profile interbody fusion cages in the treatment of single-level cervical spondylotic myelopathy have the advantages of high safety,good clinical efficacy,simple operation,less bleeding,and low incidence of postoperative dysphagia.For high or low intervertebral space,the advantages of ROI-C group are more obvious.
cervical spondylotic myelopathyanterior cervical decompression and internal fixation(ACDF)cervical fusion
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