{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T20:49:28Z","timestamp":1779310168527,"version":"3.51.4"},"reference-count":34,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2024,7,23]],"date-time":"2024-07-23T00:00:00Z","timestamp":1721692800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2024,10]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>For degenerative diseases accompanied by cervical malalignment, the starting and ending points of fixation for better cervical sagittal alignment and clinical results are not as clear as the thoracolumbar region. In this study we aimed to compare the effects of posterior subaxial cervical fixation (PSCF), posterior cervical fixation extending to the upper thoracic region and posterior upper cervical fixation extending to the upper thoracic region on cervical sagittal alignment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Sixty\u2010three patients who underwent posterior cervical and cervical\u2010up thoracic fixation were retrospectively analyzed in a comparative study. The procedures that we performed from May 2019 to March 2022 on these 63 patients were: (1) C3\u2010C6 group\u2014posterior subaxial cervical fixation; (2) Subaxial\u2010T2 group\u2014posterior subaxial cervicothoracic fixation (PSCTF); (3) C2\u2010T2 upper thoracic posterior fixation group. The C3\u2010C6 group had 27 patients, Subaxial\u2010T2 group had 24, and C2\u2010T2 group had 12. We determined the minimum follow\u2010up period as 12\u2009months. C0\u20102, C2\u20107 lordosis angle, sagittal vertical axis (SVA), C2 slope, C7 slope, T1 slope, cervical slope, neck slope, and thoracic inlet angle (TIA) measurements were made in three patient groups. Comparatively, cervical sagittal alignment was evaluated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Result<\/jats:title><jats:p>In the C2\u2010T2 group, a significant increase in C2\u2010C7 lordosis, decrease in C2 slope, and increase in TS\u2010CL were observed. Significant C2\u2010C7 lordosis decrease, C2 slope increase, and TS\u2010CL decrease were observed in the C3\u2010C6 group. A significant increase in C2\u2010C7 lordosis and a decrease in C2 slope were observed in the subaxial\u2010T2 group. No significant change was observed in the TS\u2010CL angle.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>In cervical degenerative disorders accompanied by cervical malalignment, we recommend the C2\u2010T2 fixation method, which provides the desired C2\u2010C7 lordosis, SVA within the normal range, and the best Neck Disability Index results.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.14167","type":"journal-article","created":{"date-parts":[[2024,7,24]],"date-time":"2024-07-24T02:29:37Z","timestamp":1721788177000},"page":"2410-2418","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Comparison of the Effects of Posterior Cervical Fixation or Posterior Cervical Fixation Extending to the Upper Thoracic Region on Cervical Sagittal 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