{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,10]],"date-time":"2026-05-10T22:24:20Z","timestamp":1778451860564,"version":"3.51.4"},"reference-count":27,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2020,11,1]],"date-time":"2020-11-01T00:00:00Z","timestamp":1604188800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2020,11,1]],"date-time":"2020-11-01T00:00:00Z","timestamp":1604188800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2020,11,1]],"date-time":"2020-11-01T00:00:00Z","timestamp":1604188800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2020,11,1]],"date-time":"2020-11-01T00:00:00Z","timestamp":1604188800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2020,11,1]],"date-time":"2020-11-01T00:00:00Z","timestamp":1604188800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2020,11,1]],"date-time":"2020-11-01T00:00:00Z","timestamp":1604188800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2020,11,1]],"date-time":"2020-11-01T00:00:00Z","timestamp":1604188800000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["World Neurosurgery"],"published-print":{"date-parts":[[2020,11]]},"DOI":"10.1016\/j.wneu.2020.08.003","type":"journal-article","created":{"date-parts":[[2020,8,7]],"date-time":"2020-08-07T21:15:21Z","timestamp":1596834921000},"page":"e535-e540","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":12,"special_numbering":"C","title":["Vertebral Artery Terminating Posterior Inferior Cerebellar Artery (PICA-VA) as a Potential Risk Factor in Cervical Spine Surgery"],"prefix":"10.1016","volume":"143","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1765-3417","authenticated-orcid":false,"given":"Takeshi","family":"Aoyama","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Naoshi","family":"Obara","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"issue":"3 suppl","key":"10.1016\/j.wneu.2020.08.003_bib1","doi-asserted-by":"crossref","first-page":"257","DOI":"10.3171\/spi.2003.99.3.0257","article-title":"Improved accuracy of computer-assisted cervical pedicle screw insertion","volume":"99","author":"Kotani","year":"2003","journal-title":"J\u00a0Neurosurg"},{"key":"10.1016\/j.wneu.2020.08.003_bib2","doi-asserted-by":"crossref","first-page":"E341","DOI":"10.1097\/BRS.0000000000000772","article-title":"Safe and accurate midcervical pedicle screw insertion procedure with the patient-specific screw guide template system","volume":"40","author":"Kaneyama","year":"2015","journal-title":"Spine (Phila Pa 1976)"},{"key":"10.1016\/j.wneu.2020.08.003_bib3","doi-asserted-by":"crossref","first-page":"2166","DOI":"10.1007\/s00586-014-3470-0","article-title":"A\u00a0multicenter study on accuracy and complications of freehand placement of cervical pedicle screws under lateral fluoroscopy in different pathological conditions: CT-based evaluation of more than 1,000 screws","volume":"23","author":"Hojo","year":"2014","journal-title":"Eur Spine J"},{"issue":"suppl 5","key":"10.1016\/j.wneu.2020.08.003_bib4","doi-asserted-by":"crossref","first-page":"S362","DOI":"10.4103\/2152-7806.120777","article-title":"Vertebral artery injuries in cervical spine surgery","volume":"4","author":"Schroeder","year":"2013","journal-title":"Surg Neurol Int"},{"key":"10.1016\/j.wneu.2020.08.003_bib5","series-title":"Handbook of Neurosurgery","first-page":"75","article-title":"2 Vascular anatomy","author":"Greenberg","year":"2016"},{"key":"10.1016\/j.wneu.2020.08.003_bib6","doi-asserted-by":"crossref","first-page":"e0175264","DOI":"10.1371\/journal.pone.0175264","article-title":"Vertebral artery terminating in posterior inferior cerebellar artery: a normal variation with clinical significance","volume":"12","author":"Liu","year":"2017","journal-title":"PLoS One"},{"key":"10.1016\/j.wneu.2020.08.003_bib7","first-page":"961","article-title":"Radiological and anatomical evaluation of the atlantoaxial transarticular screw fixation technique","volume":"86","author":"Madawi","year":"2009","journal-title":"J\u00a0Neurosurg"},{"key":"10.1016\/j.wneu.2020.08.003_bib8","doi-asserted-by":"crossref","first-page":"614","DOI":"10.3171\/2013.8.SPINE13136","article-title":"Screw-related complications in the subaxial cervical spine with the use of lateral mass versus cervical pedicle screws: a systematic review","volume":"19","author":"Yoshihara","year":"2013","journal-title":"J\u00a0Neurosurg Spine"},{"key":"10.1016\/j.wneu.2020.08.003_bib9","doi-asserted-by":"crossref","first-page":"1520","DOI":"10.1016\/j.spinee.2013.09.016","article-title":"Vertebral artery injuries in cervical spine surgery","volume":"14","author":"Lunardini","year":"2014","journal-title":"Spine J"},{"key":"10.1016\/j.wneu.2020.08.003_bib10","doi-asserted-by":"crossref","first-page":"779","DOI":"10.1097\/BRS.0b013e31816957a7","article-title":"Vertebral artery injury during cervical spine surgery: a survey of more than 5600 operations","volume":"33","author":"Neo","year":"2008","journal-title":"Spine (Phila Pa 1976)"},{"key":"10.1016\/j.wneu.2020.08.003_bib11","doi-asserted-by":"crossref","first-page":"987","DOI":"10.1136\/jnnp.2006.106419","article-title":"Lateral medullary ischaemic events in young adults with hypoplastic vertebral artery","volume":"78","author":"Giannopoulos","year":"2007","journal-title":"J\u00a0Neurol Neurosurg Psychiatry"},{"key":"10.1016\/j.wneu.2020.08.003_bib12","doi-asserted-by":"crossref","first-page":"230","DOI":"10.3171\/SPI\/2008\/8\/3\/230","article-title":"Analysis of anatomical variations of bone and vascular structures around the posterior atlantal arch using three-dimensional computed tomography angiography","volume":"8","author":"Hong","year":"2008","journal-title":"J\u00a0Neurosurg Spine"},{"key":"10.1016\/j.wneu.2020.08.003_bib13","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1016\/j.ultrasmedbio.2009.08.012","article-title":"Vertebral artery hypoplasia is associated with a decrease in net vertebral flow volume","volume":"36","author":"Chen","year":"2010","journal-title":"Ultrasound Med Biol"},{"key":"10.1016\/j.wneu.2020.08.003_bib14","doi-asserted-by":"crossref","first-page":"E1053","DOI":"10.1097\/BRS.0000000000000447","article-title":"Vertebral artery anomalies at the craniovertebral junction in the US population","volume":"39","author":"O\u2019Donnell","year":"2014","journal-title":"Spine (Phila Pa 1976)"},{"key":"10.1016\/j.wneu.2020.08.003_bib15","doi-asserted-by":"crossref","first-page":"1068","DOI":"10.1161\/01.STR.0000125857.63427.59","article-title":"Vertebral artery occlusion in duplex color-coded ultrasonography","volume":"35","author":"Saito","year":"2004","journal-title":"Stroke"},{"key":"10.1016\/j.wneu.2020.08.003_bib16","doi-asserted-by":"crossref","first-page":"1452","DOI":"10.1161\/01.STR.22.11.1452","article-title":"Vertebrobasilar ischemia after neck motion","volume":"22","author":"Frisoni","year":"1991","journal-title":"Stroke"},{"key":"10.1016\/j.wneu.2020.08.003_bib17","doi-asserted-by":"crossref","first-page":"4164","DOI":"10.1007\/s00586-016-4675-1","article-title":"Anatomical anomalies of the V3 segment of the vertebral artery in the Polish population","volume":"25","author":"Fortuniak","year":"2016","journal-title":"Eur Spine J"},{"key":"10.1016\/j.wneu.2020.08.003_bib18","doi-asserted-by":"crossref","first-page":"1309","DOI":"10.1016\/j.acra.2018.12.010","article-title":"Diagnostic accuracy of noncontrast self-navigated free-breathing MR angiography versus CT angiography: a prospective study in pediatric patients with suspected anomalous coronary arteries","volume":"26","author":"Albrecht","year":"2019","journal-title":"Acad Radiol"},{"key":"10.1016\/j.wneu.2020.08.003_bib19","series-title":"Extra- and Intracranial Arterial Variations: MRA and CTA","first-page":"149","article-title":"Hypoplasia of the terminal segment of the vertebral artery","author":"Uchino","year":"2015"},{"key":"10.1016\/j.wneu.2020.08.003_bib20","doi-asserted-by":"crossref","first-page":"921","DOI":"10.1161\/01.STR.17.5.921","article-title":"Duplex scanning of normal vertebral arteries","volume":"17","author":"Touboul","year":"1986","journal-title":"Stroke"},{"key":"10.1016\/j.wneu.2020.08.003_bib21","doi-asserted-by":"crossref","first-page":"291","DOI":"10.1007\/s00234-012-1112-y","article-title":"Relationship between vertebral artery hypoplasia and posterior circulation stroke in Chinese patients","volume":"55","author":"Hu","year":"2013","journal-title":"Neuroradiology"},{"key":"10.1016\/j.wneu.2020.08.003_bib22","doi-asserted-by":"crossref","first-page":"954","DOI":"10.1136\/jnnp.2006.105767","article-title":"Hypoplastic vertebral artery: frequency and associations with ischaemic stroke territory","volume":"78","author":"Park","year":"2007","journal-title":"J\u00a0Neurol Neurosurg Psychiatry"},{"key":"10.1016\/j.wneu.2020.08.003_bib23","first-page":"1775","article-title":"Rotational vertebral artery syndrome due to compression of nondominant vertebral artery terminating in posterior inferior cerebellar artery","volume":"258","author":"Noh","year":"2011","journal-title":"J\u00a0Neurol"},{"key":"10.1016\/j.wneu.2020.08.003_bib24","doi-asserted-by":"crossref","first-page":"482","DOI":"10.1177\/197140090902200421","article-title":"Endovascular treatment of isolated PICA insufficiency. A case report","volume":"22","author":"Donmez","year":"2009","journal-title":"Neuroradiol J"},{"key":"10.1016\/j.wneu.2020.08.003_bib25","doi-asserted-by":"crossref","first-page":"344","DOI":"10.1186\/1752-1947-8-344","article-title":"Embolic brain infarction related to posttraumatic occlusion of vertebral artery resulting from cervical spine injury: a case report","volume":"8","author":"Nakao","year":"2014","journal-title":"J\u00a0Med Case Rep"},{"key":"10.1016\/j.wneu.2020.08.003_bib26","first-page":"571656","article-title":"Fatal vertebral artery injury in penetrating cervical spine trauma","volume":"2015","author":"Tannoury","year":"2015","journal-title":"Case Rep Neurol Med"},{"key":"10.1016\/j.wneu.2020.08.003_bib27","doi-asserted-by":"crossref","first-page":"856","DOI":"10.3174\/ajnr.A3885","article-title":"Safety of unilateral endovascular occlusion of the cervical segment of the vertebral artery without antecedent balloon test occlusion","volume":"35","author":"Zoarski","year":"2014","journal-title":"AJNR Am J Neuroradiol"}],"container-title":["World Neurosurgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1878875020317678?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S1878875020317678?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,10,30]],"date-time":"2025-10-30T08:47:59Z","timestamp":1761814079000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S1878875020317678"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,11]]},"references-count":27,"alternative-id":["S1878875020317678"],"URL":"https:\/\/doi.org\/10.1016\/j.wneu.2020.08.003","relation":{},"ISSN":["1878-8750"],"issn-type":[{"value":"1878-8750","type":"print"}],"subject":[],"published":{"date-parts":[[2020,11]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Vertebral Artery Terminating Posterior Inferior Cerebellar Artery (PICA-VA) as a Potential Risk Factor in Cervical Spine Surgery","name":"articletitle","label":"Article Title"},{"value":"World Neurosurgery","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.wneu.2020.08.003","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2020 Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}