• World Neurosurg · Mar 2020

    Can zero-profile cage maintain the cervical curvature similar with plate-cage construct for single-level anterior cervical discectomy and fusion？.

    • Tao Li, Jun-Song Yang, Xiang-Fu Wang, Chun-Yang Meng, Jian-Min Wei, Ye-Xin Wang, Peng Zou, Hao Chen, Tuan-Jiang Liu, Peng Liu, Ding-Jun Hao, and Lei Chu.
    • Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
    • World Neurosurg. 2020 Mar 1; 135: e300-e306.

    ObjectiveWe sought to compare the clinical and radiologic outcomes after anterior cervical surgery between zero-profile (Zero-P) cage and plate-cage construct (PCC).MethodsOne-hundred and sixteen patients with single-level cervical disk herniation who underwent anterior cervical diskectomy and fusion between May 2015 and March 2017 were enrolled. They were divided into a Zero-P group (61 cases) and a PCC group (55 cases). At 1, 6, 12, and 24 months after the operation, routine follow-up evaluation was recommended including visual analog scale score and Japanese Orthopaedic Association score. The lateral x-ray film was performed at 1 and 24 months postoperatively.ResultsAll 116 patients successfully completed the operation and achieved bone fusion. While there was no significant difference in the amount of bleeding between the 2 groups, the operation time of the Zero-P group was significantly shorter than that of the PCC group with statistically difference. The visual analog scale score and Japanese Orthopaedic Association score of the 2 groups at each follow-up interval postoperatively were significantly improved compared with that before operation; the difference was statistically significant (P < 0.05, respectively). While all the C2-7 cervical curvature, segmental Cobb angle, and height of adjacent vertebral body were lost at the 24-month follow-up, the significant difference was observed in the Zero-P group (P < 0.05, respectively).ConclusionsCompared with the Zero-P system, the PCC system provides a comparable clinical outcome. Although it showed the disadvantages in controlling the operation time and surgical bleeding, the radiologic outcome was better at the 2-year follow-up.Copyright © 2019 Elsevier Inc. All rights reserved.

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