II. Indications

  1. Anesthesia of the common peroneal nerve and tibial nerve

III. Precautions

  1. Avoid injecting directly into nerves

IV. Preparation

  1. Needle: 22 to 25 gauge, 3.5 inch long
  2. Skin preparation (e.g. Hibiclens or Betadine)
    1. See Regional Anesthesia
  3. Anesthetic
    1. See Regional Anesthesia for Anesthetic options
    2. Local Anesthetic 2-5 ml (Ultrasound) or 5-10 ml (landmark)

V. Technique: Ultrasound Guided

  1. Images
    1. SciaticNerveBlockUltrasound.jpg
  2. Position
    1. Prone position
  3. Ultrasound probe
    1. Linear probe transverse at posterior thigh, 5 cm above femoral condyles
  4. Landmarks
    1. Popliteal Artery and Vein are medial to the nerve
  5. Injection
    1. Insert needle inline with Ultrasound pobe from medial approach

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