. Local and regional anesthesia : with chapters on spinal, epidural, paravertebral, and parasacral analgesia, and on other applications of local and regional anesthesia to the surgery of the eye, ear, nose and throat, and to dental practice. on the planum pterygoideum of the sphenoid bone. If we THE HEAD, SCALP, CRANIUM. BRAIN, AND FACE 5°9 now feel with the point of the needle along this resistance upward andmedially, then we must reach the foramen rotundum. The supposi-tion, by all means, is that the inferior fissure is wide enough and is nottoo tortuous. On this account, the way described i
. Local and regional anesthesia : with chapters on spinal, epidural, paravertebral, and parasacral analgesia, and on other applications of local and regional anesthesia to the surgery of the eye, ear, nose and throat, and to dental practice. on the planum pterygoideum of the sphenoid bone. If we THE HEAD, SCALP, CRANIUM. BRAIN, AND FACE 5°9 now feel with the point of the needle along this resistance upward andmedially, then we must reach the foramen rotundum. The supposi-tion, by all means, is that the inferior fissure is wide enough and is nottoo tortuous. On this account, the way described is, according to ourexaminations (Table II, No. 24), accessible only in 89 per cent, of theskulls; in the rest of the cases it is obstructed by the inferior fissure. The distance of the foramen rotundum from the inferior orbitalmargin amounts (Table II, No. 25) to from 39 to 51 mm.; on the aver-age, 45-4 mm. For the direction of the cannula the following is ofvalue: the foramen rotundum never lies higher than the inferior hori-zontal plane of the orbit. The cannula, when carried into the foramenrotundum on lateral observation, points to the superior margin of theauricle (Fig. 174); on observation from in front, it points with much S.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanesthe, bookyear1914
