Real-Time Ultrasound/MRI Fusion for Suprasacral Parallel Shift Approach to Lumbosacral Plexus Blockade and Analysis of Injectate Spread: An Exploratory Randomized Controlled Trial

Table 3

Number of subjects with sensory blockade of the dermatomes Th12-S3 and the skin area innervated by the lateral femoral cutaneous nerve after ultrasound/MRI fusion guided () versus ultrasound guided lumbosacral plexus blockade with the Suprasacral Parallel Shift technique. Values are displayed as number (proportion).

	Cold			Warmth			Touch			Pain
		US		US/MRI	US		US/MRI	US		US/MRI	US
Th12	2 (8%)	0 (0%)	0.50	1 (4%)	1 (4%)	1.00	4 (15%)	1 (4%)	0.38	7 (8%)	2 (8%)	1.00
L1	4 (15%)	3 (12%)	1.00	2 (12%)	4 (15%)	1.00	9 (35%)	6 (23%)	0.55	7 (27%)	4 (15%)	0.51
L2	8 (31%)	10 (38%)	0.79	9 (35%)	10 (38%)	1.00	9 (35%)	11 (42%)	0.80	12 (46%)	11 (42%)	1.00
L3	18 (69%)	16 (62%)	0.75	13 (50%)	16 (42%)	0.58	7 (27%)	9 (35%)	0.75	15 (58%)	9 (35%)	0.18
L4	18 (69%)	15 (58%)	0.61	17 (65%)	14 (54%)	0.61	13 (50%)	13 (50%)	1.00	13 (50%)	14 (54%)	1.00
L5	10 (38%)	11 (42%)	1.00	9 (35%)	12 (46%)	0.55	8 (31%)	10 (38%)	0.75	8 (31%)	10 (38%)	0.75
S1	16 (62%)	14 (54%)	0.63	16 (52%)	18 (69%)	0.69	3 (12%)	10 (38%)	0.016	8 (31%)	12 (46%)	0.39
S2	5 (19%)	7 (27%)	0.75	7 (27%)	10 (38%)	0.55	8 (31%)	7 (27%)	1.00	7 (27%)	6 (23%)	1.00
S3	5 (19%)	8 (27%)	0.75	5 (19%)	7 (27%)	0.75	7 (27%)	9 (25%)	0.77	7 (27%)	8 (31%)	1.00
	13 (50%)	9 (35%)	0.39	14 (54%)	10 (38%)	0.34	16 (62%)	10 (38%)	0.18	17 (65%)	10 (38%)	0.092

: ultrasound.
: magnetic resonance imaging.
: lateral femoral cutaneous nerve.