caa a22 4500 445297883 CHVBK 20180317142547.0 cr unu---uuuuu 170323e20101001xx s 000 0 eng 10.1007/s12070-010-0059-8 doi (NATIONALLICENCE)springer-10.1007/s12070-010-0059-8 Suboccipital Retrosigmoid Surgical Approach For Internal Auditory Canal--A Morphometric Anatomical Study on Dry Human Temporal Bones [Elektronische Daten] [Sanjeev Kolagi, Anita Herur, Mahesh Ugale, R. Manjula, Ashwini Mutalik] Suboccipital retrosigmoid craniotomy with removal of posterior wall of internal auditory canal is preferred by many surgeons operating on acoustic neuromas, as it is a simple and safe approach. To study the topographic landmarks of the posterior surface of the temporal bone. We studied the surgical anatomy of 224 dry adult human temporal bones, measured the various distances on posterior wall of petrous bone relevant for suboccipital surgical approach to internal auditory canal. The internal auditory canal (IAC) lies within 32-44mm from posterior wall of sigmoid sulcus and within 3-8mm from the superior border of petrous bone. The point corresponding to highest point of jugular bulb was found between 4 and 9mm away from the inferior border of IAC. The maximum distance found between bony orifice of vestibular aqueduct and IAC was 14mm and the minimum distance was 6mm.The vertical diameter of IAC ranged between 3 and 7mm. These parameters may help the surgeons for better exposure of internal auditory canal and for avoiding damage to vital surrounding structures. Association of Otolaryngologists of India, 2010 Retrosigmoid approach nationallicence Internal auditory canal nationallicence Acoustic neuroma nationallicence Human temporal bones nationallicence Kolagi Sanjeev Department of Anatomy, S.Nijalingappa Medical College, Navanagar, 587103, Bagalkot, Karnataka, India aut Herur Anita Department of Physiology, S. Nijalingappa Medical College, Navanagar, 587103, Bagalkot, Karnataka, India aut Ugale Mahesh Department of Anatomy, S.Nijalingappa Medical College, Navanagar, 587103, Bagalkot, Karnataka, India aut Manjula R. Department of Community Medicine, S. Nijalingappa Medical College, Navanagar, 587103, Bagalkot, Karnataka, India aut Mutalik Ashwini Department of Anatomy, S.Nijalingappa Medical College, Navanagar, 587103, Bagalkot, Karnataka, India aut Indian Journal of Otolaryngology and Head & Neck Surgery Springer-Verlag 62/4(2010-10-01), 372-375 0019-5421 62:4<372 2010 62 12070 https://doi.org/10.1007/s12070-010-0059-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12070-010-0059-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kolagi Sanjeev Department of Anatomy, S.Nijalingappa Medical College, Navanagar, 587103, Bagalkot, Karnataka, India aut NATIONALLICENCE 700 1- Herur Anita Department of Physiology, S. Nijalingappa Medical College, Navanagar, 587103, Bagalkot, Karnataka, India aut NATIONALLICENCE 700 1- Ugale Mahesh Department of Anatomy, S.Nijalingappa Medical College, Navanagar, 587103, Bagalkot, Karnataka, India aut NATIONALLICENCE 700 1- Manjula R. Department of Community Medicine, S. Nijalingappa Medical College, Navanagar, 587103, Bagalkot, Karnataka, India aut NATIONALLICENCE 700 1- Mutalik Ashwini Department of Anatomy, S.Nijalingappa Medical College, Navanagar, 587103, Bagalkot, Karnataka, India aut NATIONALLICENCE 773 0- Indian Journal of Otolaryngology and Head & Neck Surgery Springer-Verlag 62/4(2010-10-01), 372-375 0019-5421 62:4<372 2010 62 12070 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer