Assessment of spino cranial angle of cervical spine sagittal balance system after multi-level anterior cervical discectomy and fusion.

Changes in JOA and SF-36 failed to reach significance between two groups, while preoperative NDI in the high SCA category was larger than the low SCA category (23.33 ± 5.70 vs 19.32 ± 4.92, p = 0.041). △NDI (pre vs post) and △NDI (pre vs F/U) in the high SCA group exceeded than that in the low SCA group (pre vs post: p = 0.018, pre vs F/U: p = 0.048) (Table 3 ).

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