From: Efficacy of surgeon-directed postoperative local injection with an analgesic mixture in posterior fusion surgery for adolescent idiopathic scoliosis
Control
Submyofascial injection
P
Use of antiemetic (times)
1.0 ± 1.2
0.69 ± 1.1
0.26
Duration of constipation (days)
5.0 ± 1.8
4.7 ± 1.3
0.43
Use of laxative (times)
1.3 ± 1.7
0.3 ± 0.6
< 0.01