The Egyptian Journal of Neurology, Psychiatry and Neurosurgery

Table 7 Comparison between preoperative NDI and at different follow-up intervals among DCI group

From: Single level anterior cervical discectomy and fusion versus dynamic cervical implant: clinical and radiological outcome

	Mean	± SD
Pre NDI	46.47	10.882
Post NDI 1 month	29.20	6.483
Post NDI 3 months	30.33	14.676
Post NDI 12 months	23.47	4.764

Repeated measure ANOVAs. Pre vs 1 month (HS), pre vs 3 months (HS), pre vs 12 months (HS), 1 month vs 3 months (NS), 1 month vs 12 months (HS), 3 months vs. 12 months (HS), using Post Hoc test
NDI Neck disability index, SD Standard deviation, HS Highly significant, NS Non-significant

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