Cervical Stand-Alone Polyetheretherketone Cage versus Zero-Profile Anchored Spacer in Single-Level Anterior Cervical Discectomy and Fusion : Minimum 2-Year Assessment of Radiographic and Clinical Outcome

被引:26
作者
Cho, Hyun-Jun [1 ]
Hur, Junseok W. [1 ]
Lee, Jang-Bo [1 ]
Han, Jin-Sol [1 ]
Cho, Tai-Hyoung [1 ]
Park, Jung-Yul [1 ]
机构
[1] Korea Univ, Coll Med, Korea Univ Anam Hosp, Dept Neurosurg, Seoul 02841, South Korea
关键词
Zero-profile; Anterior cervical discectomy and fusion; Stand-alone cage; Kyphosis; Subsidence; DISC HERNIATION; PLATE; DEVICE; SUBSIDENCE; DYSPHAGIA; IMPLANT; DISEASE; SPINE;
D O I
10.3340/jkns.2015.58.2.119
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Objective : We compared the clinical and radiographic outcomes of stand-alone polyetheretherketone (PEEK) cage and Zero-Profile anchored spacer (Zero-P) for single level anterior cervical discectomy and fusion (ACDF). Methods : We retrospectively reviewed 121 patients who underwent single level ACDF within 2 years (Jan 2011-Jan 2013) in a single institute. Total 50 patients were included for the analysis who were evaluated more than 2-year follow-up. Twenty-nine patients were allocated to the cage group (m : f=19 : 10) and 21 for Zero-P group (m : f=12 : 9). Clinical (neck disability index, visual analogue scale arm and neck) and radiographic (Cobb angle-segmental and global cervical, disc height, vertebral height) assessments were followed at pre-operative, immediate post-operative, post-3, 6, 12, and 24 month periods. Results : Demographic features and the clinical outcome showed no difference between two groups. The change between final follow-up (24 months) and immediate post-op of Cobb-segmental angle (p=0.027), disc height (p=0.002), vertebral body height (p=0.033) showed statistically better outcome for the Zero-P group than the cage group, respectively. Conclusion : The Zero-Profile anchored spacer has some advantage after cage for maintaining segmental lordosis and lowering subsidence rate after single level anterior cervical discectomy and fusion.
引用
收藏
页码:119 / 124
页数:6
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