Table 4.

Radiological findings of the patients with nerve root palsy

	Palsy	No palsy	P value
Cervical lordosis (°)
Before operation	5.2 ± 3.2	9.1 ± 1.6	0.087
After operation	18.9 ± 1.4	13.4 ± 1.7	0.116
Increase	13.5 ± 3.0	3.9 ± 1.1	< 0.05
Occupying rate (%)	45.6 ± 10.8	43.1 ± 8.2	0.126
Snake-eye sign (n)
Yes	8	57	0.147
No	2	16