Variables | Beach chair | Control | P |
---|---|---|---|
(n = 30) | (n = 30) | ||
Imaging time, sec | 34.2 ± 16.7 | 48.9 ± 16.8 | 0.001* |
Needling time, sec | 85.0 ± 45.3 | 131.4 ± 88.2 | 0.013* |
Ultrasound visibility score, 0/1/2/3 | 0/0/3/27 | 0/2/14/14 | 0.000* |
Number of needle puncturesa | 2.5(2) | 4(1) | 0.000* |
Sensory block time, hour | 11.9 ± 5.4 | 11.4 ± 5.9 | 0.717 |
Motor block time, hour | 18.1 ± 5.3 | 16.0 ± 6.0 | 0.167 |
Epidural spread incidence | 1(3.3) | 9(30.0) | 0.006* |
24 h VAS scores | 3.7 ± 2.0 | 4.1 ± 2.0 | 0.372 |