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Matsumoto technique for the suprascapular nerve block. Needle insertion point is the midpoint of a line connecting the anterolateral edge of the acromion and the superomedial angle of the scapula. The needle is advanced, at an angle 30° dorsal to the coronal plane, to make contact with the base of coracoid process (Matsumoto et al. [5]). (Reprinted with permission from Elsevier.)
