{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T21:31:36Z","timestamp":1780695096459,"version":"3.54.1"},"reference-count":20,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,4,29]],"date-time":"2025-04-29T00:00:00Z","timestamp":1745884800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"},{"start":{"date-parts":[[2025,4,29]],"date-time":"2025-04-29T00:00:00Z","timestamp":1745884800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.springernature.com\/gp\/researchers\/text-and-data-mining"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Childs Nerv Syst"],"published-print":{"date-parts":[[2025,12]]},"DOI":"10.1007\/s00381-025-06804-6","type":"journal-article","created":{"date-parts":[[2025,4,28]],"date-time":"2025-04-28T22:31:11Z","timestamp":1745879471000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Retro-odontoid mass resolution analysis and timing following posterior cervical spinal fixation: 16-year paediatric neurosurgery experience in a single UK institute"],"prefix":"10.1007","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8602-0701","authenticated-orcid":false,"given":"Mostafa","family":"Elmaghraby","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fardad T.","family":"Afshari","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruben Miranda","family":"Cardoso","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Azam Ali","family":"Baig","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hadleigh J.","family":"Cuthbert","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gopiga","family":"Thanabalasundaram","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adrian","family":"Gardner","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guirish A.","family":"Solanki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,4,29]]},"reference":[{"key":"6804_CR1","doi-asserted-by":"publisher","first-page":"1511","DOI":"10.1007\/s00256-019-03187-z","volume":"48","author":"J Shi","year":"2019","unstructured":"Shi J, Ermann J, Weissman BN, Smith SE, Mandell JC (2019) Thinking beyond pannus: a review of retro-odontoid pseudotumor due to rheumatoid and non-rheumatoid etiologies. Skelet Radiol 48:1511\u20131523","journal-title":"Skelet Radiol"},{"key":"6804_CR2","doi-asserted-by":"publisher","first-page":"593","DOI":"10.2106\/00004623-198567040-00014","volume":"67","author":"SJ Lipson","year":"1985","unstructured":"Lipson SJ (1985) Cervical myelopathy, and posterior atlanto-axial subluxation in patients with rheumatoid arthritis. J Bone Joint Surg Am 67:593\u2013597","journal-title":"J Bone Joint Surg Am"},{"key":"6804_CR3","doi-asserted-by":"publisher","first-page":"137","DOI":"10.1097\/00003086-198708000-00016","volume":"221","author":"TK Fehring","year":"1987","unstructured":"Fehring TK, Brooks AL (1987) Upper cervical instability in rheumatoid arthritis. Clin Orthop Relat Res 221:137\u2013148","journal-title":"Clin Orthop Relat Res"},{"key":"6804_CR4","doi-asserted-by":"publisher","first-page":"1289","DOI":"10.2106\/00004623-195739060-00006","volume":"39","author":"PR Lipscomb","year":"1957","unstructured":"Lipscomb PR (1957) Cervico-occipital fusion for congenital and post-traumatic anomalies of the atlas and axis. J Bone Joint Surg Am 39:1289\u20131301","journal-title":"J Bone Joint Surg Am"},{"key":"6804_CR5","doi-asserted-by":"publisher","first-page":"117","DOI":"10.3171\/SPI-07\/08\/117","volume":"7","author":"RP Nockels","year":"2007","unstructured":"Nockels RP, Shaffrey CI, Kanter AS, Azeem S, York JE (2007) Occipitocervical fusion with rigid internal fixation: long-term follow-up data in 69 patients. J Neurosurg Spine 7:117\u2013123","journal-title":"J Neurosurg Spine"},{"key":"6804_CR6","doi-asserted-by":"publisher","first-page":"391","DOI":"10.1148\/radiology.161.2.3763907","volume":"161","author":"G Sze","year":"1986","unstructured":"Sze G et al (1986) Pseudotumor of the craniovertebral junction associated with chronic subluxation: MR imaging study. Radiology 161:391\u2013394","journal-title":"Radiology"},{"key":"6804_CR7","doi-asserted-by":"publisher","first-page":"67","DOI":"10.14245\/ns.2040402.201","volume":"18","author":"B Fiani","year":"2021","unstructured":"Fiani B et al (2021) Retro-odontoid pseudotumor formation in the context of various acquired and congenital pathologies of the craniovertebral junction and surgical techniques. Neurospine 18:67\u201378","journal-title":"Neurospine"},{"key":"6804_CR8","doi-asserted-by":"publisher","first-page":"561","DOI":"10.2214\/ajr.152.3.561","volume":"152","author":"EM Larsson","year":"1989","unstructured":"Larsson EM, Holt\u00e5s S, Zygmunt S (1989) Pre- and postoperative MR imaging of the craniocervical junction in rheumatoid arthritis. Am J Roentgenol 152:561\u2013566","journal-title":"Am J Roentgenol"},{"issue":"4","key":"6804_CR9","doi-asserted-by":"publisher","first-page":"661","DOI":"10.1007\/s00586-010-1629-x","volume":"20","author":"J Gempt","year":"2011","unstructured":"Gempt J, Lehmberg J, Grams AE, Berends L, Meyer B, Stoffel M (2011) Endoscopic transnasal resection of the odontoid: case series and clinical course. Eur Spine J 20(4):661\u20136. https:\/\/doi.org\/10.1007\/s00586-010-1629-x","journal-title":"Eur Spine J"},{"issue":"1","key":"6804_CR10","doi-asserted-by":"publisher","first-page":"e21715","DOI":"10.7759\/cureus.21715","volume":"14","author":"M Fana","year":"2022","unstructured":"Fana M, Deamont C, Medani K, Manjila R, Kandregula S, Labarge Iii D, Manjila S (2022) Retro-odontoid intradural synovial cyst decompression via endoscopic-assisted far-lateral approach C1\u2013C2 hemilaminectomy without fusion: the use of intracranial denticulate ligament as intraoperative landmark. Cureus 14(1):e21715. https:\/\/doi.org\/10.7759\/cureus.21715","journal-title":"Cureus"},{"key":"6804_CR11","doi-asserted-by":"publisher","first-page":"603","DOI":"10.2176\/nmc.44.603","volume":"44","author":"A Goel","year":"2004","unstructured":"Goel A, Phalke U, Cacciola F, Muzumdar D (2004) Atlantoaxial instability and retro-odontoid mass -two case reports. Neurol Med Chir (Tokyo) 44:603\u2013606","journal-title":"Neurol Med Chir (Tokyo)"},{"key":"6804_CR12","first-page":"338","volume":"52","author":"A Goel","year":"2004","unstructured":"Goel A, Sharma P (2004) Craniovertebral realignment for basilar invagination and atlantoaxial dislocation secondary to rheumatoid arthritis. Neurol India 52:338\u2013341","journal-title":"Neurol India"},{"key":"6804_CR13","doi-asserted-by":"publisher","first-page":"273","DOI":"10.3171\/SPI\/2008\/9\/9\/273","volume":"9","author":"A Goel","year":"2008","unstructured":"Goel A, Dange N (2008) Immediate postoperative regression of retroodontoid pannus after lateral mass reconstruction in a patient with rheumatoid disease of the craniovertebral junction. Case report. J Neurosurg Spine 9:273\u2013276","journal-title":"J Neurosurg Spine"},{"issue":"23","key":"6804_CR14","doi-asserted-by":"publisher","first-page":"1763","DOI":"10.1097\/BRS.0000000000002222","volume":"42","author":"JH Park","year":"2017","unstructured":"Park JH, Lee E, Lee JW, Kang Y, Ahn JM, Yeom JS, Kang HS (2017) Postoperative regression of retro-odontoid pseudotumor after atlantoaxial posterior fixation: 11 years of experience in patients with atlantoaxial instability. SPINE 42(23):1763\u20131771. https:\/\/doi.org\/10.1097\/BRS.0000000000002222","journal-title":"SPINE"},{"key":"6804_CR15","doi-asserted-by":"publisher","first-page":"1","DOI":"10.4103\/0974-8237.110115","volume":"3","author":"A Goel","year":"2012","unstructured":"Goel A (2012) Instability and basilar invagination. J Craniovert Jun Spine 3:1\u20132","journal-title":"J Craniovert Jun Spine"},{"key":"6804_CR16","doi-asserted-by":"publisher","first-page":"3","DOI":"10.4103\/0974-8237.135206","volume":"5","author":"A Goel","year":"2014","unstructured":"Goel A (2014) Goel\u2019s classification of atlantoaxial \u201cfacetal\u201d dislocation. J Craniovertebr Junction Spine 5:3\u20138","journal-title":"J Craniovertebr Junction Spine"},{"key":"6804_CR17","doi-asserted-by":"publisher","unstructured":"Tanaka S, Nakada M, Hayashi Y, Mohri M, Hayashi Y, Uchiyama N, Hamada J (2010) Retro-odontoid pseudotumor without atlantoaxial subluxation. J Clin Neurosci 17(5):649\u201352.\u00a0https:\/\/doi.org\/10.1016\/j.jocn.2009.07.116","DOI":"10.1016\/j.jocn.2009.07.116"},{"key":"6804_CR18","doi-asserted-by":"publisher","unstructured":"Goel (2015) A\u00a0 retro-odontoid mass: an evidence of craniovertebral instability. J Craniovertebr Junction Spine 6(1):6\u20137.\u00a0https:\/\/doi.org\/10.4103\/0974-8237.151578","DOI":"10.4103\/0974-8237.151578"},{"key":"6804_CR19","doi-asserted-by":"publisher","first-page":"E65","DOI":"10.1097\/BSD.0b013e3182621a05","volume":"26","author":"I Yonezawa","year":"2013","unstructured":"Yonezawa I, Okuda T, Won J et al (2013) Retrodental mass in rheumatoid arthritis. J Spinal Disord Tech 26:E65\u2013E69","journal-title":"J Spinal Disord Tech"},{"key":"6804_CR20","first-page":"395","volume":"30","author":"M Yoshida","year":"1995","unstructured":"Yoshida M, Tamaki T, Kawakami M et al (1995) Retro-odontoid pseudotumor associated with chronic atlanto-axial instability: pathogenesis and surgical treatment. Rinshou Seikeigeka 30:395\u2013402","journal-title":"Rinshou Seikeigeka"}],"container-title":["Child's Nervous System"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00381-025-06804-6.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1007\/s00381-025-06804-6","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1007\/s00381-025-06804-6.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T13:17:37Z","timestamp":1770815857000},"score":1,"resource":{"primary":{"URL":"https:\/\/link.springer.com\/10.1007\/s00381-025-06804-6"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,4,29]]},"references-count":20,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2025,12]]}},"alternative-id":["6804"],"URL":"https:\/\/doi.org\/10.1007\/s00381-025-06804-6","relation":{},"ISSN":["0256-7040","1433-0350"],"issn-type":[{"value":"0256-7040","type":"print"},{"value":"1433-0350","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,4,29]]},"assertion":[{"value":"14 January 2025","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"23 March 2025","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"29 April 2025","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Conflict of interest"}}],"article-number":"171"}}