Figure 2. Location of the entry point (red dot) ~1 cm proximal to the wrist flexor crease. The first procedure step is antegrade lidocaine injection through this point (A). Sonographic short-axis view is used to control the needle positioning (arrowhead) relative to the median nerve (arrow) (B). During injection, the median nerve (arrow) is pushed by the fluid (star) to the radial side of the wrist (C).

This figure is the original work of the authors.