Surgery Book


Distal Sciatic Nerve Block

Aka: Distal Sciatic Nerve Block, Popliteal Sciatic Nerve Block
  1. See Also
    1. Anterior Ankle Nerve Block
    2. Posterior Ankle Nerve Block
    3. Regional Anesthesia (Nerve Block)
    4. Local Skin Anesthesia
    5. Field Block
    6. Hematoma Block
    7. Digital Block
    8. Point of Care Ultrasound (POCUS)
  2. Indications
    1. Anesthesia of the common peroneal nerve and tibial nerve
  3. Precautions
    1. Avoid injecting directly into nerves
  4. 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)
  5. 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
  6. References
    1. Yurgil (2020) Am Fam Physician 101(11):654-64 [PubMed]

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