Table 2. Function Scores between Groups.

Clinical Outcomes between Groups
	Mean±SD
Variable	SLVSF(n = 16)	Control(n = 38)	p value
Nurick grade
Preoperative	2.94±0.77	2.97±0.72	0.89
Postoperative	2.19±0.54	2.16±0.64	0.87
JOA score
Preoperative	9.25±2.02	9.87±2.58	0.40
Postoperative	11.69±1.62	12.53±2.69	0.25
NDI
Preoperative	28.5±7.75	16±6.13	<0.001
Postoperative	15.56±5.51	11.29±4.58	0.005

SLVSF: single-level vertebral spontaneous fusion. JOA score: Japanese Orthopedic Association score. NDI: Neck Disability Index.