Excerpt from Diseases of the Ear
While the past few years have been marked by no startling developments in otology, advances of a practical order have not been wholly wanting. Our conception of the pathology, processes of repair and rationale of treatment of certain lesions has undergone very considerable modification. The mastoid operation of a few years ago was a bone operation pure and simple. To-day the plastic work vies in practical importance with that upon the temporal bone itself. In other words, our conception of the important role which the soft parts may play in post-operative tissue repair has led logically to a different surgical technic, which, in turn, has given us better and quicker results. To record these developments parts of this chapter have been practically rewritten. Again, the further study of the changes in the cerebrospinal fluid occurring in various diseases has conduced materially to a more correct interpretation of the meningeal lesions and disorders of otitic origin and h.as brought to light certain sources of error in diagnosis. Beyond such changes and additions as were necessary to bring these practical phases of otology in line with modern ideas, alterations in the text and arrangement of the subject matter have been avoided.
Two new chapters have been added, of which the first is devoted to Barany"s theory of the cerebellar control of joint movements, with a discussion of the pointing tests in their relation to vestibular and cerebellar disease. The second includes a brief account of the various types of war deafness, - deafness due to direct injury - of the skull, nerve deafness due to loud explosive noises, concussion deafness due to the air displacements of near-by explosions, psychic disturbances of function, pithiatism, etc., - phenomena which constitute for most of us a practically new chapter in aural disease. Direct products of military hardship and injuries, as these lesions and functional disorders undoubtedly are, their relation to certain phases of some of the commoner ear lesions is sure to provide a fruitful field for future investigation and discussion.
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