Table 2.

Comparison of pain scores by VAS (out of 10) at successive evaluations between the coblation and conventional sides (mean)

	Coblation side	Conventional side	P value
At 6 h	4.0	8.2	<0.001
At 12 h	3.7	7.8	<0.001
At 1 day	3.3	7.1	<0.001
At 2 days	3.1	5.2	<0.05
At 3 days	3.1	3.3	<0.05
At 7 days	2.1	2.3	NS
At 20 days	0	0	NS
Average over 20 days	2.76	4.84	<0.001

NS not significant