How is a carpal tunnel steroid injection administered using an out-of-plane ultrasound-guided approach?

Updated: May 31, 2018
  • Author: Samir Shah, MD; Chief Editor: Meda Raghavendra (Raghu), MD  more...
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Using a high frequency ultrasound transducer held transverse across the wrist, the median nerve is identified under the flexor retinaculum. The needle is advanced out of plane, proximal to the ultrasound transducer and directed toward the third digit. Once under the flexor retinaculum the steroid solution is injected with low resistance to surround the median nerve.

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