{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T17:19:35Z","timestamp":1788542375063,"version":"build-2803163510"},"reference-count":38,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2022,12,8]],"date-time":"2022-12-08T00:00:00Z","timestamp":1670457600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100009592","name":"Beijing Municipal Science and Technology Commission","doi-asserted-by":"publisher","award":["Z191100007619048"],"award-info":[{"award-number":["Z191100007619048"]}],"id":[{"id":"10.13039\/501100009592","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2023,2]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>Adolescent idiopathic scoliosis (AIS) is a three\u2010dimensional structural deformity of the spine caused by the disruption of the biomechanical balance of the spine. However, the current biomechanical modeling and analysis methods of scoliosis cannot really describe the real state of the spine. This study aims to propose a high\u2010precision biomechanical modeling and analysis method that can reflect the spinal state under gravity and provide a theoretical basis for therapeutics.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Combining CT and X\u2010ray images of AIS patients, this study constructed an adjusted three\u2010dimensional model and FE model of the spine corresponding to the patient's gravity position, including vertebral bodies, intervertebral discs, ribs, costal cartilage, ligaments, and facet cartilage. Then, the displacement and stress of the spine under gravity were analyzed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>A model of the T1\u2010Sacrum with 1.7 million meshes was constructed. After adding the gravity condition, the maximum displacement point was at T1 of thoracic vertebra (20.4\u2009mm). The analysis indicates that the stress on the lower surface of the vertebral body in thoracolumbar scoliosis tended to be locally concentrated, especially on the concave side of the primary curvature's vertebral body (the maximum stress on the lower surface of T9 is 32.33\u2009MPa) and the convex side of the compensatory curvature's vertebral body (the maximum stress on the lower surface of L5 is 41.97\u2009MPa).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study provides a high\u2010precision modeling and analysis method for scoliosis with full consideration of gravity. The reliability of the method was verified based on patient data. This model can be used to analyze the biomechanical characteristics of patients in the treatment plan design stage.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.13572","type":"journal-article","created":{"date-parts":[[2022,12,9]],"date-time":"2022-12-09T04:57:36Z","timestamp":1670561856000},"page":"606-616","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Construction of the Adjusted Scoliosis <scp>3D<\/scp> Finite Element Model and Biomechanical Analysis under Gravity"],"prefix":"10.1111","volume":"15","author":[{"given":"Jiahao","family":"Li","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College  Beijing China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhicheng","family":"An","sequence":"additional","affiliation":[{"name":"National Engineering Laboratory for 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