. Regional anesthesia : its technic and clinical application . Fig. 93.—Field-block for excision of large sebaceous cyst. The needle is insertedthrough wheals raised at points marked here by dots and advanced in the direction ofthe Fig. 94.—Field-block for small suture of the scalp. 124 REGIONAL ANESTHESIA 1 inch wide, is shaved half-way around the head from the occiput to theforehead, passing above the ear, and another along the sagittal line(Fig. 95). Through one or more wheals raised immediately above thezygomatic arch deep injections are carried down to the bone, so as toreach the
. Regional anesthesia : its technic and clinical application . Fig. 93.—Field-block for excision of large sebaceous cyst. The needle is insertedthrough wheals raised at points marked here by dots and advanced in the direction ofthe Fig. 94.—Field-block for small suture of the scalp. 124 REGIONAL ANESTHESIA 1 inch wide, is shaved half-way around the head from the occiput to theforehead, passing above the ear, and another along the sagittal line(Fig. 95). Through one or more wheals raised immediately above thezygomatic arch deep injections are carried down to the bone, so as toreach the deep temporal nerves. Subcutaneous infiltration is madealong the shaved band all around the operative field, subfascial injec-tions being made wherever need be, that is, where muscle layers overlie
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