Injection of local anesthetic intraneurally occurs commonly during peripheral nerve block, but whether this or the common practice of supplementing inadequate block with a more distal block causes risks to patients is uncertain:
* Sala-Blanch et al.: No Clinical or Electrophysiologic Evidence of Nerve Injury after Intraneural Injection during Sciatic Popliteal Block, p. 589
* Nader et al.: Nerve Stimulator-guided Supplemental Popliteal Sciatic Nerve Block after a Failed Sciatic Block Does Not Increase the Incidence of Transient Postoperative Neurologic Sequelae, p. 596
(C) 2011 American Society of Anesthesiologists, Inc.