{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T00:13:09Z","timestamp":1789776789786,"version":"4.0.1"},"reference-count":23,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2020,8,26]],"date-time":"2020-08-26T00:00:00Z","timestamp":1598400000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Clinical Anatomy"],"published-print":{"date-parts":[[2021,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Introduction<\/jats:title><jats:p>Many researchers have assumed that neurovascular compression of the facial nerve at the site covered by central myelin sheath causes hemifacial spasm. However, some cases do not correspond to this hypothesis. The aim of this study was to clarify the myelin histology in the facial nerve.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Histological analyses were conducted on 134 facial nerves from 67 cadavers. Three dimensions were measured in these sections: the length from the upper border of the medullopontine sulcus to the boundary between the central and peripheral myelin sheath along the anterior side; the length from the detachment point of the brain stem to the boundary along the posterior side; and the length of the transitional zone (TZ), known as the Obersteiner\u2013Redlich zone.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of the 134 facial nerves, 41 were available for study. The length of the central myelin segment ranged from 4.62 to 12.6\u2009mm (mean 8.06\u2009mm; median 7.98\u2009mm) along the anterior side and from 0.00 to 4.58\u2009mm (mean 1.68\u2009mm; median 1.42\u2009mm) along the posterior side of the facial nerve, and the length of the TZ ranged from 0.00 to 2.76\u2009mm (mean 1.51\u2009mm; median 1.42\u2009mm).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>In this study, the length of the central myelin segment in the facial nerve was found to be longer than that previously reported.<\/jats:p><\/jats:sec>","DOI":"10.1002\/ca.23664","type":"journal-article","created":{"date-parts":[[2020,7,26]],"date-time":"2020-07-26T23:09:15Z","timestamp":1595804955000},"page":"405-410","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Wide distribution of central myelin segment along the facial nerve might explain hemifacial spasm with distal nerve compression"],"prefix":"10.1002","volume":"34","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2838-7844","authenticated-orcid":false,"given":"Kei","family":"Nomura","sequence":"first","affiliation":[{"name":"Center for Brain and Spine Surgery Aoyama General Hospital  Toyokawa Aichi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiroshi","family":"Ryu","sequence":"additional","affiliation":[{"name":"Center for Brain and Spine Surgery Aoyama General Hospital  Toyokawa Aichi Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Koji","family":"Ohno","sequence":"additional","affiliation":[{"name":"Ohno Homecare Clinic  Osaka Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kohji","family":"Sato","sequence":"additional","affiliation":[{"name":"Department of Organ and Tissue Anatomy Hamamatsu University School of Medicine  Shizuoka Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,8,26]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.3171\/JNS\/2008\/109\/9\/0416"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/mus.26478"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1097\/00006123-200208000-00023"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1136\/jnnp.48.2.189"},{"key":"e_1_2_8_6_1","first-page":"223","article-title":"Facial nerve management in temporal bone hemangiomas","volume":"13","author":"Eby T. 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