Each side of the 0.375% ropivacaine injection 20ml, visible drug thoracolumbar fascia gap with the back side muscle proliferation represents a successful injection.
Injection 0 per side 375% roberate 20 ml, which shows that the spread of the drug in the chest and lumbar fascia after the waist muscle indicates the success of the injection.
Each side was injected with 0.375% ropivacaine for 20 ml. it can be seen that the diffusion of the drug in the thoracolumbar fascia space behind the quadratus psoas muscle indicates that the injection was successful.