What is the wing-digital nerve block procedure?

Updated: May 16, 2018
  • Author: Dmitry Volfson, DO; Chief Editor: Meda Raghavendra (Raghu), MD  more...
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Answer

When only the distal part of the digit is involved (eg, nail injury), a wing block procedure can be used instead of a digital block.

  • Position the extremity with the volar/plantar side down.

  • Hold the needle perpendicular to the long axis of the digit and at 45 degrees to the plane of the sterile field.

  • Insert the needle 3 mm proximal to an imaginary point where a linear extension of the lateral and proximal nail folds would intersect (see image below).

    Wing block technique. Wing block technique.
  • Inject the anesthetic along the proximal nail fold.

  • Slowly withdraw the needle and redirect it toward the lateral nail fold.

  • This may be performed on the opposite side of the nail as necessary. [12]


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