Novel Motor-Sparing Ultrasound-Guided Neural Injection in Severe Carpal Tunnel Syndrome: A Comparison of Four Injectates

Figure 3

Ultrasound-guided long-axis injection image. (a) The position of in-plane long-axis injection advancing from the wrist crease to palm. (b) The long-axis view shows swollen nerve fascicles, flexor retinaculum (arrows), and inflamed tendons in same plane. (c) The long-axis view shows that the MN was separated from the flexor retinaculum (arrows) via HD. MN: median nerve; FDS: flexor digitorum superficialis; FDP: flexor digitorum profundus.

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