Table 4.

Postoperative quality of analgesic effects

Groups	Fentanyl	Tramadol HCL	Saline	p
Maximum block height (Thoracic dermatome)	7.40±1.27	8.30±0.75	7.66±2	>0.05
Onset at T10 (min)	4.80±1.47	6.11±2.46	5.55±2.40	>0.05
Beginning of motor block (min)	5.12±2.95	4.92±1.85	6.61±3.46	>0.05
Grade of motor block	1.95+0.39	1.92+0.49	2.11+0.60	>0.05
Two-segment regression of block (min)	99.25+35.80	86.53+24.27	107.77+35.01	>0.05
Regression to S1-2 (min)	183.75+47.01*	143.07+14.22	149.81+26.78	<0.05

All values are mean±SD.

p>0.05 is statistically insignificant.

HCL: Hydrochloride.