Table 3.

Group comparison by visual analogue scale (VAS)

VAS measure	Posteroanterior (n = 15)	Oblique (n = 14)	p-value
Preprocedure	8.1 ± 1.0	8.1 ± 1.3	0.99
Postprocedure
5 Minutes	3.3 ± 3.6	1.0 ± 2.1	0.04
10 Minutes	2.6 ± 2.7	1.6 ± 2.2	0.09
15 Minutes	1.9 ± 2.5	1.7 ± 2.7	0.56
30 Minutes	1.8 ± 2.6	1.6 ± 2.6	0.78

Values are presented as mean±standard deviation.

The only significant difference between the 2 groups is that the average VAS 5 minutes postprocedure score is significantly lower (t=2.15, p=0.04) for the oblique group than for the posteroanterior group.