{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T12:36:57Z","timestamp":1772109417790,"version":"3.50.1"},"reference-count":13,"publisher":"Journal of Neurosurgery Publishing Group (JNSPG)","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["SPI"],"published-print":{"date-parts":[[2007,12]]},"abstract":"<jats:p>\u2713The authors report the case of a 65-year-old woman with atlantoaxial subluxation caused by rheumatoid arthritis. The patient had been hospitalized because of an infection after a total-knee replacement, when she suddenly lost consciousness and became apneic after an episode of intractable neck pain. Cranial computed tomography scanning demonstrated subarachnoid hemorrhage (SAH), and angiography revealed a dissecting aneurysm of the radiculomedullary artery that had originated from an extracranial vertebral artery dissection at the level of the atlantoaxial joint. Although coil embolization for the parent artery, including the dissecting aneurysm, was performed successfully, the patient died of worsening infection. The authors believe that the SAH occurred because of a ruptured dissecting aneurysm in the intradural portion of the radiculomedullary artery.<\/jats:p>","DOI":"10.3171\/spi-07\/12\/660","type":"journal-article","created":{"date-parts":[[2007,12,13]],"date-time":"2007-12-13T21:37:59Z","timestamp":1197581879000},"page":"660-663","source":"Crossref","is-referenced-by-count":16,"title":["Dissecting aneurysm of the radiculomedullary artery originating from extracranial vertebral artery dissection in a patient with rheumatoid cervical spine disease: an unusual cause of subarachnoid hemorrhage"],"prefix":"10.3171","volume":"7","author":[{"given":"Shingo","family":"Toyota","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Osaka Neurological Institute; and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akatsuki","family":"Wakayama","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Osaka Neurological Institute; and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yasunori","family":"Fujimoto","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Osaka Neurological Institute; and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shiro","family":"Sugiura","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Osaka Neurological Institute; and"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshiki","family":"Yoshimine","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Osaka University Medical School, Osaka, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1754","reference":[{"key":"b1-0070660","series-title":"Neuroradiology","doi-asserted-by":"publisher","first-page":"352","DOI":"10.1007\/BF00588368","article-title":"Spontaneous dissection of the extracranial vertebral artery with spinal subarachnoid haemorrhage in a patient with Behcet's disease","volume":"35","author":"Bahar","year":"1993"},{"key":"b2-0070660","series-title":"Radiology","doi-asserted-by":"publisher","first-page":"651","DOI":"10.1148\/15.3.651","article-title":"Traumatic vertebral artery pseudoaneurysm following chiropractic manipulation","volume":"115","author":"Davidson","year":"1975"},{"key":"b3-0070660","series-title":"Arthritis Rheum","doi-asserted-by":"publisher","first-page":"136","DOI":"10.1002\/art.1780290119","article-title":"Pseudoaneurysm of the vertebral artery: a complication of rheumatoid cervical spine disease","volume":"29","author":"Fedele","year":"1986"},{"key":"b4-0070660","series-title":"J Neurol","doi-asserted-by":"publisher","first-page":"189","DOI":"10.1007\/BF00314317","article-title":"Vertebrobasilar insufficiency in rheumatoid atlanto-axial subluxation: a case report with angiographic demonstration of left vertebral artery occlusion","volume":"235","author":"Howell","year":"1988"},{"key":"b5-0070660","series-title":"J Neurol","doi-asserted-by":"publisher","first-page":"683","DOI":"10.1007\/s004150050432","article-title":"Stroke following chiropractic manipulation of the cervical spine","volume":"246","author":"Hufnagel","year":"1999"},{"key":"b6-0070660","series-title":"J Neurol Neurosurg Psychiatry","doi-asserted-by":"publisher","first-page":"122","DOI":"10.1136\/jnnp.39.2.122","article-title":"Vertebrobasilar artery insufficiency in rheumatoid atlantoaxial subluxation","volume":"39","author":"Jones","year":"1976"},{"key":"b7-0070660","series-title":"J Neurosurg","doi-asserted-by":"publisher","first-page":"111","DOI":"10.3171\/jns.1986.65.1.0111","article-title":"Rheumatoid arthritis and positional vertebrobasilar insufficiency. 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