. 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. ot go toodeep—1 cm. at the most, which we can control by our sliding total depth amounts to 45 to 57 mm., on the average 50 mm. (SeeTable II, No. 14.) Favorable for the injection into the fossa is the circumstance thatit is filled with loose masses of fat, which permit a good diffusion of 36 562 LOCAL ANESTHESIA the injected solution into the vic
. 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. ot go toodeep—1 cm. at the most, which we can control by our sliding total depth amounts to 45 to 57 mm., on the average 50 mm. (SeeTable II, No. 14.) Favorable for the injection into the fossa is the circumstance thatit is filled with loose masses of fat, which permit a good diffusion of 36 562 LOCAL ANESTHESIA the injected solution into the vicinity. The nervus maxillaris () itself lies in the uppermost part of the fossa sphenomaxillary, andis fixed to its roof by connective tissue. In its course it takes an S-form, which in a sagittal direction comes out of the foramen rotundum;it bends laterally, in order to arrive at the sulcus infra-orbitalis of theupper jaw, when it takes the sagittal direction again. The orbitalpuncture follows the direction of this nerve-trunk itself, which in itsmanner presents a similar axial puncture. Br aim Method.—This is an effective and simple means of reach-ing the trunk of the third division at its exit from the skull, and fairly. Fig. 222.—Angle and point of crossing within the skull of the axes of the needle in theHartel route, if continued backward in a bilateral puncture. (Original illustration fromcollection of Prof. Matas.) as accurate as the Offerhaus, Hartel, or any other route for reachingthe trunk of the nerve and much easier executed. The needle is entered at about the midpoint of the zygoma onits undersurface, and directed transversely inward until it strikesupon the external plate of the pterygoid process near its base (). It will be seen, from a reference to the position of these parts,that the foramen ovale lies directly back of the base of this plate andon the same anteroposterior plane, consequently the depth to theexternal plate at its base is the
Size: 1507px × 1659px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectanesthe, bookyear1914
