A practical treatise on the diseases of the ear including the anatomy of the organ . e contraction of the muscle causes the handle ofthe malleus to appear broader, and the membrana tympani tolook as if twisted, in a state of what in surgical language iscalled torsion. The anterior ligament of the malleus, whichpasses from the spina tympanica to the neck of the malleus,also becomes more prominent, in retraction of the tendon ofthe tensor tympani. The final mark of retraction of the mus-cle, according to Gruber, is the more or less rapid repositionof the membrane in its former position after the
A practical treatise on the diseases of the ear including the anatomy of the organ . e contraction of the muscle causes the handle ofthe malleus to appear broader, and the membrana tympani tolook as if twisted, in a state of what in surgical language iscalled torsion. The anterior ligament of the malleus, whichpasses from the spina tympanica to the neck of the malleus,also becomes more prominent, in retraction of the tendon ofthe tensor tympani. The final mark of retraction of the mus-cle, according to Gruber, is the more or less rapid repositionof the membrane in its former position after the air-douchehas been employed. It is certainly very easy for us to verifythese indications, as given by Gruber, and it is to be hopedthat the operation will have a fair trial in the class of cases * Seperat-abdruck aus der Allgemeinen Wiener Medizinischen Zeitung,Jan., 1872. DIVISION OF TENSOR TYMPANI. 337 of non-suppurative disease, for which we have as yet done solittle. Gruber advises that the tendon be usually divided asTVeber recommends, in front of the handle of the Orubers Knife far dividing the Tensor Tympani. The accident that may possibly happen, if the membrane isopened posteriorly to the malleus, according to Gruber, is aperforation of the carotid artery, if the carotid canal be incom-plete in its bony wall; but this kind of an accident seems tobe almost impossible, with any care in the management of the22 338 division or tensor tympani. tenotome. As another argument for the anterior incision, itis stated, that the labyrinth cannot be entered if the opening,be made in front of the malleus, while the knife might possi-bly go through the foramen ovalis, if the opening be madeposteriorly. Gruber uses a much simpler instrument thanWebers for the division of the tendon, and one which, inmy judgment, is much more practicable. It is representedon the preceding page, and consists of a narrow, needle-likeknife, fastened in a handle at an obtuse angle. The knife isth
Size: 1736px × 1440px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdeca, booksubjectear, booksubjecteardiseases
