What is the modified version of the transthecal digital nerve block technique?

Updated: May 16, 2018
  • Author: Dmitry Volfson, DO; Chief Editor: Meda Raghavendra (Raghu), MD  more...
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A modified version of this technique can also be used effectively. [11]

  • Position the patient’s hand with the palm facing up.

  • Insert the needle at a 90-degree angle at the metacarpal crease until bone is hit.

  • Withdraw the needle slightly and inject the anesthetic.

  • During the injection, use the nondominant hand to apply pressure just proximal to the injection site, to direct the flow distally (see image below).

    Modified transthecal block. Modified transthecal block.

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