{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T13:12:11Z","timestamp":1774617131528,"version":"3.50.1"},"reference-count":35,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2023,8,11]],"date-time":"2023-08-11T00:00:00Z","timestamp":1691712000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Brain Sciences"],"abstract":"<jats:p>Cervical sagittal balance plays a pivotal role in spine surgeries as it has a significant impact on the clinical outcomes in cervical spine surgery. Image processing techniques have significantly improved the accuracy and precision of cervical surgical techniques. This study aims to investigate the effects of T1 slope (T1s) on the disappearance of cervical lordosis after posterior cervical double-door laminoplasty using medical informatics and radiographic measures. To do so, we determined and measured the loss of T1s and cervical lordosis during the postoperative follow-up period in patients with double-door posterior cervical laminoplasty. Patients (n = 40) who underwent posterior cervical double-door laminoplasty participated in this study. For all patients, the difference between the preoperative T1s (angle between the upper edge of T1 and the horizontal line) and preoperative and postoperative cervical lordosis (Cobb method) was estimated, and the linear relationship between the two was statistically analyzed to observe the influence of preoperative T1s on postoperative cervical lordosis disappearance. The average preoperative T1s was 23.54\u00b0, and the average preoperative cervical lordosis angle was 8.50\u00b0. After 1\u201320 months of follow-up (mean = 9.53 months), the average postoperative cervical lordosis was 8.50\u00b0, and the average loss of cervical lordosis was 0.22\u00b0. Twenty cases had different degrees of lordosis angle loss after the operation, with an average loss of 9.31\u00b0. All patients were divided into groups A and B, according to a mean value of T1s = 23.54\u00b0, of which T1S &gt; 23.54\u00b0 was group A and T1s &lt; 23.54 was group B. Cervical lordosis was quantified by the C2\u2013C7 Cobb angle. The Cobb angle difference of cervical lordosis was measured before and after the operation, and its correlation with preoperative T1s was assessed. The preoperative Cobb angle and cervical curvature changes in the two groups were statistically compared, and the difference between the two groups was statistically significant (p &lt; 0.05). The group with a T1s &gt; 23.54\u00b0 had greater loss of preoperative Cobb angle and cervical curvature. In group A, the mean preoperative cervical disability index (NDI) was 32.4 \u00b1 3.4, and the mean postoperative NDI score was 16.5 \u00b1 2.1. The mean preoperative VAS scores of neck pain and neck pain were 5.41 \u00b1 1.1 and 5.55 \u00b1 0.3, respectively, and the improvement in neck pain was \u22120.2%. The mean preoperative NDI in group B was 30.1 \u00b1 2.9, and the mean postoperative NDI score was 11.5 \u00b1 3.1. The mean VAS score for preoperative neck pain was 5.11 \u00b1 1.2, that for postoperative neck pain was 4.18 \u00b1 0.7, and that for neck pain improved by 18%. There was a significant difference between the two groups (p &lt; 0.05). The disappearance of cervical lordosis after posterior cervical double-door laminoplasty is an important cause of postoperative cervical spine pain. The T1s is meaningful for predicting the loss of postoperative curvature in patients undergoing posterior cervical double-door laminoplasty. This is especially true for patients with good preoperative cervical curvature without ankylosis and kyphosis but with a wide T1s.<\/jats:p>","DOI":"10.3390\/brainsci13081189","type":"journal-article","created":{"date-parts":[[2023,8,11]],"date-time":"2023-08-11T10:20:16Z","timestamp":1691749216000},"page":"1189","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Effect of T1 Slope on Disappearance of Cervical Lordosis after Posterior Cervical Double-Door Laminoplasty Based on Medical Informatics"],"prefix":"10.3390","volume":"13","author":[{"given":"Yulin","family":"Zhao","sequence":"first","affiliation":[{"name":"Department of Orthopedics, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, No. 758 Hefei Road, Qingdao 266035, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Binglei","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, No. 758 Hefei Road, Qingdao 266035, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Baisheng","family":"Yuan","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, No. 758 Hefei Road, Qingdao 266035, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2023,8,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2474","DOI":"10.1097\/BRS.0b013e3181573aee","article-title":"Prognostic factors for deterioration of patients with cervical spondylotic myelopathy after nonsurgical treatment","volume":"32","author":"Shimomura","year":"2007","journal-title":"Spine"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"973924","DOI":"10.3389\/fsurg.2022.973924","article-title":"Analysis of risk factors of axial neck pain in posterior cervical single-door laminoplasty from the perspective of cervical sagittal plane","volume":"9","author":"Zuo","year":"2022","journal-title":"Front. 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Spine"}],"container-title":["Brain Sciences"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2076-3425\/13\/8\/1189\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T20:31:05Z","timestamp":1760128265000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2076-3425\/13\/8\/1189"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,8,11]]},"references-count":35,"journal-issue":{"issue":"8","published-online":{"date-parts":[[2023,8]]}},"alternative-id":["brainsci13081189"],"URL":"https:\/\/doi.org\/10.3390\/brainsci13081189","relation":{},"ISSN":["2076-3425"],"issn-type":[{"value":"2076-3425","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,8,11]]}}}