File:Surgical treatment; a practical treatise on the therapy of surgical diseases for the use of practitioners and students of surgery (1920) (14780158701).jpg

Identifier: surgicaltreatmen02warb (find matches)
Title: Surgical treatment; a practical treatise on the therapy of surgical diseases for the use of practitioners and students of surgery
Year: 1920 (1920s)
Authors: Warbasse, James Peter, 1866-1957
Subjects: Surgery
Publisher: Philadelphia, London, W. B. Saunders company
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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e secondary fines, from below upward. The inferior frontal fissure begins at the junction of third and fourth tenths of the pre-central line. The anterior branch of the middle meningeal artery crosses the second tenthof the three primary lines. The lateral ventricle is opposite the junction of the third andfourth tenths of the lambdoidal line. The technic of applying this method of measurements in operations on the brain is notdifficult. The scalp should be shaved and the necessary fines and landmarks marked on thescalp with silver nitrate or with a marking pencil. To mark a point on the s&ull for identi-fication, a sharp-pointed instrument is passed through the scalp, and with a few taps of amallet a puncture is made in the outer tables of the skull, which can be seen when the scalp isturned back and the skull exposed. Only the area to be sought need be marked on theskull. The only lines that require to be marked are those which have to do withjthe local-ization of that area. D F
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Pig. 734.—Craniocerebral Topography by Reids Lines. Reids method of craniocerebral localization has three primary lines. The baseline (AB)i s drawn horizontally from the lowest part of the infra-orbital border through the center of theexternal auditory meatus, and thence backward (Fig. 734). The anterior perpendicular line(DE) is drawn from the pre-auricular point (a depression on the base line between the con-dyle and the tragus), at right angles to the base line, and ends at the median line above.The posterior perpendicular line (FG) begins at the base line at a point vertically above theposterior limit of the mastoid process and passes upward vertically to the median fine. TheSylvian fissure (HJ) extends from a point 3.1 cm. (1% inches behind the external angularprocess to a point 1.8 cm. (% inch) below the most prominent point on the parietal emi-nence. The ascending limb of the Sylvian fissure (IK) may be marked out by drawing a verti-cal fine, beginning at the Sylvian line 1.8

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