RESUMO
AIM: The study analyzes the extension of anesthesia induced by Alemanno's brachial plexus block technique on the various areas of competence of the different nerves. METHODS: The study was conducted on 58 patients in ASA classes 1 and 2 scheduled to receive shoulder arthroscopy. At the end of the operation, about 2 hours after induction of anesthesia, extension of anesthesia was evaluated by the pin-prick test. RESULTS: Anesthesia was achieved in 100% of cases for the circumflexus, musculocutaneous and radial nerves; the median nerve escaped in 7% of cases, the medial cutaneous nerve of forearm in 20%, the ulnar nerve in 27.5%, the medial cutaneous nerve of arm and intercostobrachial nerves in 46%; no major complications were associated with the technique. CONCLUSION: Alemanno's technique is recommended for operations on the shoulder and humerus, whereas more peripheral techniques may be preferable for interventions on the forearm and hand.
