Impact of Age and Duration of Symptoms on Surgical Outcome of Single-Level Microscopic Anterior Cervical Discectomy and Fusion in the Patients with Cervical Spondylotic Radiculopathy

Table 1

Pre- and postoperative characteristics of our treated patients.

Indexes	Preoperative	Last followup	value
NDI	22.2 ± 6.2 (11–35)	8.7 ± 5.2 (1–21)	<0.001
VAS	6.2 ± 1.4 (4–10)	3.5 ± 2.0 (0–7)	<0.001

NDI: Neck Disability Index.
VAS: Visual Analogue Scale.