{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,7,20]],"date-time":"2024-07-20T00:15:24Z","timestamp":1721434524351},"reference-count":18,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2024,7,19]],"date-time":"2024-07-19T00:00:00Z","timestamp":1721347200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2024,7,19]],"date-time":"2024-07-19T00:00:00Z","timestamp":1721347200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"name":"Chongqing Natural Science Foundation Project","award":["CSTB2022NSCQ-MSX0070"],"award-info":[{"award-number":["CSTB2022NSCQ-MSX0070"]}]},{"name":"the medical program of Chongqing health and science,technology commission","award":["2021MSXM285"],"award-info":[{"award-number":["2021MSXM285"]}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Eur J Med Res"],"abstract":"<jats:title>Abstract<\/jats:title><jats:sec>\n                <jats:title>Background<\/jats:title>\n                <jats:p>The aim of this study is to introduce a novel nanohydroxyapatite\/polyamide 66(n-HA\/PA66)n strut to improve biomechanical performance and reduce subsidence.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Methods<\/jats:title>\n                <jats:p>One validated intact and 2 ACCF-simulated C3\u2013C7 cervical spine models were developed (old strut: Group A, new strut: Group B). In the ACCF models, C5 underwent corpectomy and was fixed by an anterior cervical plate. Screw angles were categorized as 1 (0\u00a0) and 2 (45\u00a0) and divided into 4 groups, A1, A2, B1 and B2, for each model. An axial force of 74\u00a0N and a moment couple of 1.0\u00a0Nm were imposed on the C3 vertebra. The range of motion (ROM) of each segment and the stress distribution on the screw\u2013vertebra interface, strut, and strut\u2013endplate interface were recorded and analysed.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>There was no significant difference in ROM between Group A and Group B during bending, extension and rotation under 74 N axial pressure. The stress concentration on the strut body in Group A was higher than that in Group B. The peak stress values at the screw\u2013vertebral interface in Groups A1 and A2 were higher than those in Groups B1 and B2, except for during extension and lateral bending. Under axial pressure, the peak stress values at the strut body\u2013endplate interface during bending, extension and rotation were lower in the A1 and A2 groups than in the B1 and B2 groups. The Group B model showed much higher graft stress than the Group A model.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusions<\/jats:title>\n                <jats:p>Based on finite-element analysis, compared with the old strut, the novel strut showed better biomechanical performance at the screw\u2013vertebra interface.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s40001-024-01978-2","type":"journal-article","created":{"date-parts":[[2024,7,19]],"date-time":"2024-07-19T04:01:28Z","timestamp":1721361688000},"update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A novel nanohydroxyapatite\/polyamide 66 strut for reducing subsidence after one-level anterior cervical corpectomy and fusion: a finite-element study"],"prefix":"10.1186","volume":"29","author":[{"given":"Weiyang","family":"Zhong","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ke","family":"Tang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhengxue","family":"Quan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2024,7,19]]},"reference":[{"issue":"7","key":"1978_CR1","doi-asserted-by":"publisher","first-page":"413","DOI":"10.1097\/BRS.0000000000002441","volume":"43","author":"JD Oliver","year":"2018","unstructured":"Oliver JD, Goncalves S, Kerezoudis P, et al. 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All participants provided written informed consent before their data were stored in our hospital database and used for study purposes.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"375"}}