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Table 1 The effective rate of the block in all regions in patients at different time points after the horizontal erector spinal muscle block of the T12 transverse process (%, n = 28)

From: Distribution of the T12 erector spinal muscle plane block in the dorsal region guided by ultrasound

Block region After the block
10 min 20 min 30 min 40 min 50 min 60 min
1 T7~T8 0 0 3 3 3 3
2 T8~T9 0 25 48.2 50 50 50
3 T9~T10 0 57.1 91 92.8 92.8 92.8
4 T10~T11 11.1 60.7 96.4 96.4 96.4 96.4
5 T11~T12 44.6 69.6 92.8 92.8 92.8 92.8
6 T12~L1 42.8 76.7 87.5 89.2 89.2 89.2
7 L1~L2 42.8 75 87.5 87.5 87.5 87.5
8 L2~L3 0 78.5 87.5 91 91 91
9 L3~L4 0 51.7 83.9 85.7 85.7 85.7
10 L4~L5 0 10.7 73.2 82.1 82.1 82.1
11 L5~S1 0 0 12.5 14.2 14.2 14.2