Group BS Group BF Group BC
Sensory block
• Time to reach T12(mins)
• Highest Block
Operative limb
Non operative limb
• Time to regress to L2 level (mins)

9.5 ± 1.84
T10 (T6-11)
L3 (T12-S3)

133  ± 18.03

9.8 ± 1.84
T10 (T7-12)
L3 (T12-S1)

187  ± 14.39

10.0 ± 1.60
T10 (T6-11)
L2 (T12-S1)

181.6  ± 17.57
Motor block (bromage scale)
0/1/2/3
• Operative limb
• Non operative limb


1/0/5/34
30/5/4/1


0/1/3/36
32/4/2/2


1/2/0/37
30/6/2/2
Time of complete recovery of motor block (min) 186.88 ± 10.97 198.03  ± 12.59 250.00  ± 28.77
Unilateral Block
At 20 mins
At 40 mins

29 (73%)
26 (65%)

30 (75%)
28 (70%)

29 (73%)
27 (68%)
Surgical anaesthesia (Adequate/Inadequate/failed) 37/2/1 38/2/0 36/3/1
Time of Ist analgesic need (mins) 245.35  ± 26.60 324.45  ± 23.57 318  ± 22.29
Time of spontaneous urination (mins) 398.35  ± 16.60 408.43 ± 18.00 1.36± 16.69
Table 2: Block characteristics and other data (data are expressed as Mean ± SD, Median (range) or Number (%)