title: Ultrasound-assisted and evoked motor response stimulation of the deep peroneal nerve.
abstract: BACKGROUND
  We performed an observational volunteer study to document an ultrasound-guided evoked motor response blockade of the deep peroneal nerve.
  
  
  METHODS
  Sixteen volunteers had deep peroneal nerve blocks in each foot. After visualization of the artery and the deep peroneal nerve with an ultrasound, the nerve was stimulated with a nerve stimulator. Evoked motor responses and/or paresthesia were noted before injection of the local anesthetic.
  
  
  RESULTS
  Any evoked motor response (extension of the toes or muscle contractions on the dorsum of the lateral aspect of the foot) or elicitation of paresthesia resulted in complete sensory blockade of the web between the big toe and second toe.
  
  
  CONCLUSIONS
  Visualization of the deep peroneal nerve with ultrasound followed by elicitation of an evoked motor response, or paresthesia, predicts successful blockade of the deep peroneal nerve.
authors.affiliation: Department of Anesthesiology, Northwestern University Feinberg School of Medicine, 251 East Huron St., Feinberg Pavilion, Suite 5-704, Chicago, IL 60611, USA. hbenzon@nmff.org
authors.forename: Honorio T
authors.initials: HT
authors.lastname: Benzon
authors.forename: Mehul
authors.initials: M
authors.lastname: Sekhadia
authors.forename: Hubert A
authors.initials: HA
authors.lastname: Benzon
authors.forename: Edward Ted
authors.initials: ET
authors.lastname: Yaghmour
authors.forename: Kiran
authors.initials: K
authors.lastname: Chekka
authors.forename: Antoun
authors.initials: A
authors.lastname: Nader
mesh_terms: D000328:Adult; D000779:Anesthetics, Local / Q000008:administration & dosage*; D004558:Electric Stimulation / Q000009:adverse effects; D019054:Evoked Potentials, Motor; D005260:Female; D006801:Humans; D007267:Injections; D008012:Lidocaine / Q000008:administration & dosage*; D008297:Male; D008875:Middle Aged; D009407:Nerve Block / Q000009:adverse effects; D010292:Paresthesia / Q000209:etiology; D010543:Peroneal Nerve / Q000000981:diagnostic imaging* / Q000187:drug effects*; D012677:Sensation / Q000187:drug effects; D018084:Ultrasonography, Interventional
chemical_list: D000779:Anesthetics, Local; D008012:Lidocaine