. Local and regional anesthesia; with chapters on spinal, epidural, paravertebral, and parasacral analgesia, and other applications of local and regional anesthesia to the surgery of the eye, ear, nose and throat, and to dental practice. uperior orbital fissure. In the living subject the most importantguide for our puncture is the subjective statement of the patient re-garding radiating pain in the region of the second branch of the trige-minus. (See Table I.) The axial injection of the foramen rotundum, the jNIatas routethrough the orbit and sphenomaxillary fissure, has been erroneouslycredit


. Local and regional anesthesia; with chapters on spinal, epidural, paravertebral, and parasacral analgesia, and other applications of local and regional anesthesia to the surgery of the eye, ear, nose and throat, and to dental practice. uperior orbital fissure. In the living subject the most importantguide for our puncture is the subjective statement of the patient re-garding radiating pain in the region of the second branch of the trige-minus. (See Table I.) The axial injection of the foramen rotundum, the jNIatas routethrough the orbit and sphenomaxillary fissure, has been erroneouslycredited by Braun, Hartel, and others to Payr; this, however, is anerror, as the conception of this method of approach and its first ap-plication undoubtedly belong to Prof. Matas, who first used it in 1898,and it was published by him in his report on Local and RegionalAnesthesia, etc., to the Louisiana State Med. See, April, from this report are given later on. THE HEAD. SCALP, CRAMUM, BRAIN, AND FACE 553 This successful application stimulated other efforts in this direc-tion, and much of the work which appeared in the few years follow-ing along these lines undoubtedly received the idea and stimulus fromthis Fig. 182.—Matas intra-orbital route to foramen rotundum. (Braun.) In studying the orbit, v/ith a view of the appUcation of the variousmethods, we see that the foramen rotundum is concealed from view


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