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Identification of the lumbar interspinous spaces: palpation versus ultrasound.
Anesth Analg
February 2008
Department of Anesthesia and Pain Management, Mount Sinai Hospital, 600 University Ave. Suite 1514, Toronto, Ontario, Canada M5G 1X5.
Background: Palpation has been shown to be inaccurate at identifying lumbar interspinous spaces. Our goal in this study was to compare ultrasound imaging of the region to palpation.
Methods: Using ultrasound in the postpartum period, we estimated the interspinous level used for obstetric neuraxial anesthesia in 121 women and compared this estimation with the level estimated by palpation and documented in the chart by the anesthesiologist.