. Regional anesthesia : its technic and clinical application . 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 m
. Regional anesthesia : its technic and clinical application . 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. Fig. 95.—Field-block for extensive lateral sutures of the scalp, with or without fracture of the skull. the cranium; 20 of the 1 per cent, solution are sufficient for thedeep subtemporal injections and from 60 to 80 for the othercircmnferential injections. If the wound lies on the vertex, overlapping the opposite side, thesagittal infiltration is not necessary, but bilateral injections should bemade, similar and according to the procedure just described, thusanesthetizing the entire crown of the head, including the skull ( and 97). OPERATIONS ON THE HEAD 125 Craniectomies.—^According to the site of the lesion, unilateral orbilateral block is the ideal method for the surgical treatment of frac-
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