{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T06:36:35Z","timestamp":1789799795434,"version":"4.0.1"},"reference-count":26,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2024,9,23]],"date-time":"2024-09-23T00:00:00Z","timestamp":1727049600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2024,9,23]],"date-time":"2024-09-23T00:00:00Z","timestamp":1727049600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"DOI":"10.13039\/501100003453","name":"Natural Science Foundation of Guangdong Province","doi-asserted-by":"crossref","award":["2022A1515012557"],"award-info":[{"award-number":["2022A1515012557"]}],"id":[{"id":"10.13039\/501100003453","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Global Spine Journal"],"published-print":{"date-parts":[[2025,5]]},"abstract":"<jats:sec>\n                    <jats:title>Study Design<\/jats:title>\n                    <jats:p>A retrospective study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To explore the relationship between K-line tilt and short-term surgical outcomes following laminoplasty in patients with multilevel degenerative cervical myelopathy (DCM), and to evaluate the potential of K-line tilt as a reliable preoperative predictor.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A retrospective analysis was performed for 125 consecutive patients who underwent laminoplasty for multilevel DCM. The radiographic parameters utilized in this study encompassed T1 slope (T1S), C2-C7 lordosis (CL), C2-C7 sagittal vertical axis (cSVA), T1 slope minus C2-C7 lordosis (T1S-CL), C2-C7 range of motion (ROM), and K-line tilt. The neurological recovery was evaluated using the Japanese Orthopaedic Association (JOA) score. Pearson correlation coefficients were calculated to assess the relationship between K-line tilt and other classical cervical parameters. Logistic regression analysis was employed to examine the association between K-line tilt and surgical outcomes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Of the 125 patients, 89 were men. The mean age of the patients was 61.74 \u00b1 11.31 years. The results indicated a correlation between the K-line tilt and the cSVA (\n                      <jats:italic toggle=\"yes\">r<\/jats:italic>\n                      = 0.628,\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.001), T1S (\n                      <jats:italic toggle=\"yes\">r<\/jats:italic>\n                      = 0.259,\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      = 0.004), and T1S-CL (\n                      <jats:italic toggle=\"yes\">r<\/jats:italic>\n                      = 0.307,\n                      <jats:italic toggle=\"yes\">P<\/jats:italic>\n                      &lt; 0.001). The K-line tilt showed an association with the failure of the JOA recovery rate (RR) to reach the minimal clinically important difference (MCID) and the occurrence of postoperative kyphotic deformity. We identified cutoff values for the K-line tilt which predict the failure of the JOA RR to reach the MCID and postoperative kyphotic deformity as 10.13\u00b0 and 9.93\u00b0, respectively.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The K-line tilt is an independent preoperative risk factor associated with both the failure of the JOA RR to reach the MCID and the occurrence of postoperative kyphotic deformity in patients with multilevel DCM after laminoplasty.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/21925682241288202","type":"journal-article","created":{"date-parts":[[2024,9,24]],"date-time":"2024-09-24T10:48:08Z","timestamp":1727174888000},"page":"2129-2139","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["K-Line Tilt May Influence the Short-Term 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University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoqing","family":"Zheng","sequence":"additional","affiliation":[{"name":"Guangdong Provincial People\u2019s Hospital (Guangdong Academy of Medical Sciences) Southern Medical University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoping","family":"Wang","sequence":"additional","affiliation":[{"name":"Xiaolan People\u2019s Hospital of Zhongshan"},{"name":"(The Fifth People\u2019s Hospital of Zhongshan)"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yunbing","family":"Chang","sequence":"additional","affiliation":[{"name":"Guangdong Provincial People\u2019s Hospital (Guangdong Academy of Medical Sciences) Southern Medical 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