{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T10:21:14Z","timestamp":1789035674360,"version":"build-2803163510"},"reference-count":10,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2019,4,7]],"date-time":"2019-04-07T00:00:00Z","timestamp":1554595200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Orthop Surg (Hong Kong)"],"published-print":{"date-parts":[[2019,5,1]]},"abstract":"<jats:p>The presence of anatomical anomalies such as absence of C1 posterior arch and presence of C2 high-riding vertebral artery may not allow a conventional C1\u2013C2 fusion, and this patient will require occipitocervical fusion. A 62-year-old lady presented with cervical myelopathy. CT scan demonstrated an os odontoideum with C1\u2013C2 dislocation. The posterior arch of atlas on right C1 vertebra was absent, and there was high-riding vertebral artery on left C2. MRI revealed severe cord compression with cord oedema. The chronic atlantoaxial dislocation was reduced successfully with skeletal traction. Hybrid C1\u2013C2 fusion augmented with autogenous local bone graft with corticocancellous iliac crest bone graft was performed to avoid an unnecessary occipitocervical fusion. She was stable throughout surgery and discharged 6 days later. CT scan 6 months post-operation showed a solid posterior fusion mass. Hybrid C1\u2013C2 fusion can be performed to avoid occipitocervical fusion despite presence of abnormal anatomy at C1 and C2 vertebrae.<\/jats:p>","DOI":"10.1177\/2309499019840763","type":"journal-article","created":{"date-parts":[[2019,4,7]],"date-time":"2019-04-07T23:56:11Z","timestamp":1554681371000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["C1\u2013C2 fusion with absence of C1 posterior arch and presence of C2 high-riding vertebral artery: Is it possible?"],"prefix":"10.1177","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3076-228X","authenticated-orcid":false,"given":"Tat Seng","family":"Wong","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery (NOCERAL), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Muhammad Lutfi","family":"Abdul Rashid","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery (NOCERAL), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohd Shahnaz","family":"Hasan","sequence":"additional","affiliation":[{"name":"Department of Anaesthesiology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chee Kidd","family":"Chiu","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery (NOCERAL), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chris Yin Wei","family":"Chan","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery (NOCERAL), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mun Keong","family":"Kwan","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery (NOCERAL), Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2019,4,7]]},"reference":[{"key":"bibr1-2309499019840763","doi-asserted-by":"publisher","DOI":"10.1055\/s-0034-1376371"},{"key":"bibr2-2309499019840763","doi-asserted-by":"publisher","DOI":"10.2214\/ajr.118.2.431"},{"key":"bibr3-2309499019840763","doi-asserted-by":"publisher","DOI":"10.1097\/01.brs.0000184306.19870.a8"},{"key":"bibr4-2309499019840763","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/91.4.655"},{"key":"bibr5-2309499019840763","doi-asserted-by":"publisher","DOI":"10.1097\/01.brs.0000217686.80327.e4"},{"issue":"3","key":"bibr6-2309499019840763","first-page":"188","volume":"47","author":"Jain VK","year":"1999","journal-title":"Neurol India"},{"key":"bibr7-2309499019840763","doi-asserted-by":"publisher","DOI":"10.3171\/jns.1996.84.4.0573"},{"key":"bibr8-2309499019840763","doi-asserted-by":"publisher","DOI":"10.1016\/S0002-9610(39)90309-0"},{"key":"bibr9-2309499019840763","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-7091-8882-8_59"},{"key":"bibr10-2309499019840763","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-200111150-00014"}],"container-title":["Journal of Orthopaedic Surgery"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/2309499019840763","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/2309499019840763","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/2309499019840763","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T00:26:59Z","timestamp":1777595219000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/2309499019840763"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,4,7]]},"references-count":10,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2019,5,1]]}},"alternative-id":["10.1177\/2309499019840763"],"URL":"https:\/\/doi.org\/10.1177\/2309499019840763","relation":{},"ISSN":["1022-5536","2309-4990"],"issn-type":[{"value":"1022-5536","type":"print"},{"value":"2309-4990","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,4,7]]},"article-number":"2309499019840763"}}