Table 3.

Comparison of VAS scores of patients with primary trigeminal neuralgia after operation between the PSR and MVD groups.

Time point	MVD group (n=52)	PSR group (n=65)	t	P
1 week after operation	2.23±1.58	3.78±2.04	4.51	<0.001
2 weeks after operation	0.87±0.95	1.31±1.26	2.10	0.038
1 month after operation	0.38±0.49	0.57±0.68	1.64	0.104
3 months after operation	0.12±0.32	0.18±0.43	0.97	0.337
6 months after operation	0.10±0.30	0.11±0.31	0.56	0.575

MVD – micro-vascular decompression; PSR – partial sensory rhizotomy.