II. Physiology: Ear sensory innervation

  1. Greater auricular nerve
  2. Lesser Occipital Nerve
  3. Auriculotemporal nerve
  4. Lesser Occipital Nerve

III. Technique: Field Block

  1. Block forms diamond shape encompassing ear
  2. Infiltrate with total of 10-20 cc of 1% Lidocaine
  3. Insert needle at superior ear aspect, direct inferiorly
    1. Infiltrate along ear anterior and superior aspect
    2. Infiltrate along ear posterior and superior aspect
  4. Insert needle at inferior ear aspect, direct superiorly
    1. Infiltrate along ear anterior and inferior aspect
    2. Infiltrate along ear posterior and inferior aspect

IV. References

  1. Moy in Pfenninger (1994) Procedures, p. 145-55
  2. Salam (2004) Am Fam Physician 69(3):585-90

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