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As the natural progression of this anomaly is not well documented, we suggest periodic follow-up to monitor the progression of degenerative changes and instability of the occipitoatlantal junction.<\/jats:p>","DOI":"10.1136\/bcr-2015-212748","type":"journal-article","created":{"date-parts":[[2015,10,27]],"date-time":"2015-10-27T08:53:15Z","timestamp":1445935995000},"page":"bcr2015212748","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["What the mind does not know, the eyes do not see: a rare congenital fusion of the odontoid process to the atlantal hemiarch"],"prefix":"10.1136","volume":"2015","author":[{"given":"Mariapan","family":"Sureisen","sequence":"first","affiliation":[{"name":"Orthopaedic and Traumatology Department, Hospital Umum Sarawak, Kuching, Sarawak, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ramanand","family":"Achannan","sequence":"additional","affiliation":[{"name":"Orthopaedic and Traumatology Department, Hospital Sungai Buloh, Sungai Buloh, Selangor, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kuan Chon","family":"Chong","sequence":"additional","affiliation":[{"name":"Orthopaedic and Traumatology Department, Hospital Sungai Buloh, Sungai Buloh, Selangor, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chung Chek","family":"Wong","sequence":"additional","affiliation":[{"name":"Orthopaedic and Traumatology Department, Hospital Umum Sarawak, Kuching, Sarawak, Malaysia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2015,10,27]]},"reference":[{"key":"2025082703481260000_2015.oct26_2.bcr2015212748.1","first-page":"337","article-title":"On fusion of atlas and axis vertebra","volume":"64","author":"Cave","year":"1930","journal-title":"J Anat"},{"key":"2025082703481260000_2015.oct26_2.bcr2015212748.2","doi-asserted-by":"publisher","DOI":"10.1007\/BF00395319"},{"key":"2025082703481260000_2015.oct26_2.bcr2015212748.3","doi-asserted-by":"publisher","DOI":"10.1097\/00024720-200202000-00018"},{"key":"2025082703481260000_2015.oct26_2.bcr2015212748.4","first-page":"19","article-title":"[Studies on the fissure formation of the atlas and epistropheus. 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