Edward R. Mariano, MD, MAS
Publication Details
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Prepuncture ultrasound imaging to predict transverse process and lumbar plexus depth for psoas compartment block and perineural catheter insertion: a prospective, observational study.
Anesth Analg. 2010; (6): 1725-8
All widely used psoas compartment block/catheter techniques have a common limitation: external landmarks do not accurately predict lumbar plexus depth, leaving practitioners to "guess" at what depth to stop advancing the placement needle when neither transverse process nor lumbar plexus is intercepted. We assessed the accuracy of ultrasound in estimating transverse process depth before needle insertion and prediction of actual needle-to-plexus intercept depth for psoas compartment nerve blocks and perineural catheter insertion.
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