 ... bones is the small triangular space just behind the spine of Henle. 2. That this point of attack not only furnishes a guide to the site of the antrum, but also gives fairly accurate data as to the depth beyond which it is not safe to proceed. 3. That...  Archives of Otology - Page 1751903Full view - About this book
 | George Frederick Shrady, Thomas Lathrop Stedman - 1903 - 1226 pages
...to proceed. (3) That the depth of the aatrura is always less than the length of the posteroMperior wall of the meatus; that in the great majority of bones it is not over 1 2 mm. , is often very much less, and is never greater than 15 mm., or f inch; and therefore U) That... | |
 | 1904 - 912 pages
...Horizontal semicircular canal and bend of facial canal exposed — showing their relation to antrum. the site of the antrum, but also gives fairly accurate...very much less, and is never greater than 15 mm., or -^j inch ; and therefore — depth of s/z inch should be regarded as the extreme limit of safety. NB... | |
 | Seymour Oppenheimer - 1906 - 576 pages
...the antrum, but gives fairly accurate data as to the depth beyond which it is not safe to proceed. The depth of the antrum is always less than the length of the postero-superior wall of the meatus, and finally in attempting to expose the antrum, the depth of 15 millimeters should be the extreme limit... | |
 | 1903 - 342 pages
...measurements Kerrison concludes: (1) Arch, fiir Obrenhellkunde, December, 1902 1. That in operation upon the mastoid process the antrum should always...very much less, and is never greater than 15 mm., or f inch; and therefore, 4. That in a surgical, attempt to expose the antrum a depth of f of an inch... | |
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