{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,1]],"date-time":"2026-06-01T13:14:36Z","timestamp":1780319676287,"version":"3.54.1"},"reference-count":13,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2023,3,17]],"date-time":"2023-03-17T00:00:00Z","timestamp":1679011200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Surg."],"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To propose and validate a new classification of surgical methods for patients with subaxial cervical hemivertebrae.<\/jats:p><\/jats:sec><jats:sec><jats:title>Method<\/jats:title><jats:p>This article reviewed cases diagnosed with subaxial cervical hemivertebrae in our hospital from January 2008 to December 2019. The results of preoperative (initial visit), postoperative and\/or final follow-up were assessed using the Japanese Orthopaedic Association (JOA) score, Neck Disability Index (NDI) score, spinal balance parameters, and Scoliosis Research Society-22 Questionnaire (SRS-22). We also performed a reliability study to assess this classification.<\/jats:p><\/jats:sec><jats:sec><jats:title>Result<\/jats:title><jats:p>The classification includes three types. Each type can be divided into two subtypes, and a preliminary algorithm is proposed. Type I: There is an obvious appearance deformity in the neck, there are hemivertebrae in the cervical spine, and only a single hemivertebra of the subaxial cervical hemivertebra needs to be resected. Type II: There is an obvious appearance deformity in the neck, there are hemivertebrae in the cervical spine, and multiple subaxial cervical hemivertebrae need to be removed. Type III: No apparent deformity in the neck, at least one subaxial cervical hemivertebra existed or Klipper-Feil syndrome. Each type is divided into two subtypes, A and B, according to whether the upper and lower adjacent vertebral bodies of the rescected hemivertebra(e) are fused. We propose corresponding treatment methods for different types. We included a total of 121 patients and reviewed the prognosis for each type of patient. All patients achieved satisfactory results. The reliability study showed that the mean interobserver agreement was 91.8% (89.3%\u201393.4%), and the <jats:italic>\u03ba<\/jats:italic> value was 0.845 (0.800\u20130.875). The intraobserver agreement ranged from 93.4% to 97.5%, with a mean <jats:italic>\u03ba<\/jats:italic> value of 0.929 (0.881 to 0.954).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>In our study, we proposed and validated a new classification of subaxial cervical hemivertebrae and proposed corresponding treatment plans for different classifications.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fsurg.2023.1123397","type":"journal-article","created":{"date-parts":[[2023,3,17]],"date-time":"2023-03-17T04:34:56Z","timestamp":1679027696000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["A novel classification of subaxial cervical hemivertebrae and associated surgical management"],"prefix":"10.3389","volume":"10","author":[{"given":"Jinhui","family":"Wu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Miao","family":"Hu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhengbo","family":"Tao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Heng","family":"Jiang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tao","family":"Lin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jun","family":"Ma","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rui","family":"Gao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ce","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuhui","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2023,3,17]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"1718","DOI":"10.1002\/ccr3.1144","article-title":"Hemivertebra of the cervical spine: an uncommon background for neck pain, cervical scoliosis, and torticollis","volume":"5","author":"Kapetanakis","year":"2017","journal-title":"Clin Case Rep"},{"key":"B2","doi-asserted-by":"publisher","first-page":"41","DOI":"10.1016\/j.pediatrneurol.2005.06.010","article-title":"Congenital muscular torticollis: evaluation and classification","volume":"34","author":"Tatli","year":"2006","journal-title":"Pediatr Neurol"},{"key":"B3","doi-asserted-by":"publisher","first-page":"121","DOI":"10.1159\/000082435","article-title":"Hemivertebra: prenatal diagnosis, incidence and characteristics","volume":"20","author":"Goldstein","year":"2005","journal-title":"Fetal Diagn Ther"},{"key":"B4","doi-asserted-by":"publisher","first-page":"1751","DOI":"10.1097\/BRS.0b013e3181af1caf","article-title":"The natural history of congenital scoliosis and kyphosis","volume":"34","author":"Marks","year":"2009","journal-title":"Spine"},{"key":"B5","doi-asserted-by":"publisher","first-page":"1367","DOI":"10.2106\/00004623-199910000-00002","article-title":"Natural history of congenital kyphosis and kyphoscoliosis. 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