. 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. r and posterior branches;from the anterior branch a filament is given off, which runs forward tocommunicate with the sympathetic system. In making these paravertebral injections the object is to reach thenerves at their point of division, so as to anesthetize this communica-ting filament (Figs. 65, 73, 133). From a study of the vertebral column of the aver
. 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. r and posterior branches;from the anterior branch a filament is given off, which runs forward tocommunicate with the sympathetic system. In making these paravertebral injections the object is to reach thenerves at their point of division, so as to anesthetize this communica-ting filament (Figs. 65, 73, 133). From a study of the vertebral column of the average adult, with aview of obtaining information for the guidance of paravertebral in-jections, we find on its posterior aspect that if a vertical line is drawndown the tips of the spinous processes and lateral measurementsmade from this line the free interval between the transverse pro-cesses is about 1 inch on each side (Fig. 133). While the conformationof the vertebrae in the dorsal and lumbar regions is quite different,this measurement holds good along the entire dorsal and lumbarregions. As the intervertebral foramina are shielded posteriorly bythe lateral projections of the articular processes, a point about \ inch454 EPIGASTRIC-. >AB0OMIKAL. CREMA8TERIC KNEEJERK. FOOT CLONUS. fig. 132.—Topography and distribution of the spinal nerve-roots. (Gerrish, A Text of Anatomy.) book 456 LOCAL ANESTHESIA further out, making i\ inches from the midline, is best selected as thepoint of puncture, so as to enable the needle to be directed upwardand inward toward the intervertebral foramina. The average interval between the transverse processes in the dorsalregion is about \ inch, while the midpoint of this space lies in a verticalline about i inch from the midpoint of the space above or below it. In the lumbar region the free space between the transverse proc-esses is from \ to § inch, and the distance from the midpoint of onespace to that of the other is about if inches. On the la
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanesthe, bookyear1914
