PMC5804614_01
The injection between the rectus muscle and the posterior sheath. The tip of the needle (yellow arrow) is on the posterior lobe of the rectus sheath. The deposition of injected local anesthetic (blue semicircle) is observed behind the rectus abdominis muscle. RAM rectus abdominis muscle, IOM internal oblique muscle, TAM transversus abdominis muscle
40981_2017_105_Fig1_HTML.jpg
PMC5804614_01_40981_2017_105_Fig1_HTML.jpg
Fig1
The needle position was confirmed with a small amount of saline; then, 4 mL of 0.25% ropivacaine was administered under real-time ultrasound guidance (Fig. 1).
The injection in the subcutaneous tissue. The tip of the needle (yellow arrow) is in the subcutaneous space around the umbilicus. The depositions of injected local anesthetic (blue) are also observed inside the rectus sheath. RAM rectus abdominis muscle
40981_2017_105_Fig2_HTML.jpg
PMC5804614_01_40981_2017_105_Fig2_HTML.jpg
Fig2
A subcutaneous fan-shaped injection of 4 mL of 0.25% ropivacaine was performed (Fig. 2).