{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,6]],"date-time":"2025-12-06T07:07:53Z","timestamp":1765004873148},"reference-count":30,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JNS"],"published-print":{"date-parts":[[2016,11]]},"abstract":"<jats:sec><jats:title>OBJECTIVE<\/jats:title><jats:p>The object of this study was to examine the relationships of the cochlea as a guide for avoiding both cochlear damage with loss of hearing in middle fossa approaches and injury to adjacent structures in approaches directed through the cochlea.<\/jats:p><\/jats:sec><jats:sec><jats:title>METHODS<\/jats:title><jats:p>Twenty adult cadaveric middle fossae were examined using magnifications of \u00d73 to \u00d740.<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p>The cochlea sits below the floor of the middle fossa in the area between and below the labyrinthine segment of the facial nerve and greater petrosal nerve (GPN) and adjacent to the lateral genu of the petrous carotid. Approximately one-third of the cochlea extends below the medial edge of the labyrinthine segment of the facial nerve, geniculate ganglion, and proximal part of the GPN. The medial part of the basal and middle turns are the parts at greatest risk in drilling the floor of the middle fossa to expose the nerves in middle fossa approaches to the internal acoustic meatus and in anterior petrosectomy approaches. Resection of the cochlea is used selectively in extending approaches through the mastoid toward the lateral edge of the clivus and front of the brainstem.<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSIONS<\/jats:title><jats:p>An understanding of the location and relationships of the cochlea will reduce the likelihood of cochlear damage with hearing loss in approaches directed through the middle fossa and reduce the incidence of injury to adjacent structures in approaches directed through the cochlea.<\/jats:p><\/jats:sec>","DOI":"10.3171\/2015.8.jns151325","type":"journal-article","created":{"date-parts":[[2016,1,29]],"date-time":"2016-01-29T15:03:24Z","timestamp":1454079804000},"page":"1094-1104","source":"Crossref","is-referenced-by-count":15,"title":["The cochlea in skull base surgery: an anatomy study"],"prefix":"10.3171","volume":"125","author":[{"given":"Jian","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Neurosurgery\/Neuro-Oncology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, People's Republic of China;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fumitaka","family":"Yoshioka","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, University of Florida, Gainesville, Florida"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wonil","family":"Joo","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Catholic University of Korea, Uijeongbu St. Mary's Hopsital, Gyeonggi-do, Korea;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Noritaka","family":"Komune","sequence":"additional","affiliation":[{"name":"Department of Otorhinolaryngology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan; 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