• J Rodríguez, M Bárcena, J Carceller, J Lagunilla, M Bouzada, and J Alvarez.
• Servicio de Anestesiología y Reanimación, Hospital Xeral de Galicia, Complexo Hospitalario Universitario de Santiago de Compostela, La Coruña.
• Rev Esp Anestesiol Reanim. 1998 Jun 1;45(6):238-41.

IntroductionArm abduction of 90 degrees during injection of local anesthetic followed by adduction of the arm has been recommended traditionally to favor proximal distribution of local anesthetic and extension of the blockade in the brachial plexus by the axillary route. A recent study demonstrated that there are no clinical or radiological differences between axillary blockades performed with abduction or adduction.ObjectiveTo compare the extension of sensory blockade in axillary anesthesia performed with adduction or abduction.Material And MethodsForty patients were randomly distributed in two groups, 20 in the adduction group and 20 in the abduction group. The axillary catheter was inserted 3 cm in the proximal direction and a mixture of 40 ml of 1.5% mepivacaine without adrenaline and 4 ml of 8.4% bicarbonate soda was injected into each patient.ResultsNo statistically significant differences in extension of sensory blockade, including circumflex, musculocutaneous and radial nerve blockade, were observed.ConclusionsAxillary rotation of the arm is not a determining factor in sensory blockade in brachial plexus anesthesia by the axillary route.

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