Regional anesthesia and pain medicine
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Reg Anesth Pain Med · Sep 2013
Sonoanatomy Relevant for Lumbar Plexus Block in Volunteers Correlated With Cross-sectional Anatomic and Magnetic Resonance Images.
Ultrasound imaging of the anatomy relevant for lumbar plexus block (LPB) is challenging because of its deep anatomic location and the "acoustic shadow" of the overlying transverse processes. A paramedian transverse scan (PMTS) of the lumbar paravertebral region with the ultrasound beam being insonated through the intertransverse space (ITS) and directed medially toward the intervertebral foramen (PMTS-ITS) may overcome the problem of the "acoustic shadow" and allow clear visualization of the anatomy relevant for LPB. This study assessed the feasibility of using PMTS-ITS for imaging the anatomy relevant for LPB in healthy volunteers. ⋯ A PMTS-ITS can be used to image the sonoanatomy relevant for LPB including the lumbar nerve root, lumbar paravertebral space, lumbar plexus, and the psoas compartment.
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Reg Anesth Pain Med · Jul 2013
Randomized Controlled TrialAdjuvant dexamethasone for bupivacaine sciatic and ankle blocks: results from 2 randomized placebo-controlled trials.
Perineural dexamethasone may improve post-op analgesia for sciatic blocks but not for ankle blocks when compared with systemic dexamethasone.
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