{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,4]],"date-time":"2025-05-04T00:36:23Z","timestamp":1746318983090},"reference-count":24,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2013,11,20]],"date-time":"2013-11-20T00:00:00Z","timestamp":1384905600000},"content-version":"vor","delay-in-days":19,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2013,11]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To compare the biomechanical properties of single\u2010 and two\u2010segment fusion for <jats:styled-content style=\"fixed-case\">D<\/jats:styled-content>enis type <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content> spinal fracture.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Two female patients with <jats:styled-content style=\"fixed-case\">D<\/jats:styled-content>enis type <jats:styled-content style=\"fixed-case\">B L<\/jats:styled-content><jats:sub>1<\/jats:sub> vertebral fractures were studied. Both patients had achieved intervertebral fusion by 1 year postoperatively, at which time <jats:styled-content style=\"fixed-case\">CT<\/jats:styled-content> data were collected, including data of one patient before and after removal of pedicle screws and of another whose pedicle screws were not removed. The data were imported into <jats:styled-content style=\"fixed-case\">M<\/jats:styled-content>imics software and <jats:styled-content style=\"fixed-case\">T<\/jats:styled-content><jats:sub>11<\/jats:sub>\u2010<jats:styled-content style=\"fixed-case\">L<\/jats:styled-content><jats:sub>2<\/jats:sub> three dimensional models established. After construction of the models, they were imported into <jats:styled-content style=\"fixed-case\">ANSYS<\/jats:styled-content> software. An axial load (260\u2009<jats:styled-content style=\"fixed-case\">N<\/jats:styled-content>) and 10\u2009Nm torque were loaded to simulate the flexion, extension, lateral bending and rotation of the spine, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There was no significant difference in the average displacement of the spine motion between the two\u2010segment and single\u2010segment fusion patients without removal of pedicle screws. However, for all motion forms, the average displacement of the single\u2010segment fusion patient' spine after removal of pedicle screws was significantly greater than that before removal of pedicle screws and that of the two\u2010segment fusion patient. The average <jats:styled-content style=\"fixed-case\">V<\/jats:styled-content>on <jats:styled-content style=\"fixed-case\">M<\/jats:styled-content>ises stress of <jats:styled-content style=\"fixed-case\">T<\/jats:styled-content><jats:sub>11\u201312<\/jats:sub> intervertebral disc of two\u2010segment fusion patient was significantly greater than that of the one\u2010segment fusion patient. Moreover, the average <jats:styled-content style=\"fixed-case\">V<\/jats:styled-content>on <jats:styled-content style=\"fixed-case\">M<\/jats:styled-content>ises stress of <jats:styled-content style=\"fixed-case\">T<\/jats:styled-content><jats:sub>11\u201312<\/jats:sub> intervertebral disc of single\u2010segment fusion patient was greater before than after removal of pedicle screws.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Provided there is satisfactory interbody fusion, removal of pedicle screws after one\u2010segment fusion can increase spinal motion, reduce the stress on adjacent intervertebral discs and delay disc degeneration.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.12068","type":"journal-article","created":{"date-parts":[[2013,11,20]],"date-time":"2013-11-20T09:05:22Z","timestamp":1384938322000},"page":"266-273","source":"Crossref","is-referenced-by-count":3,"title":["Comparison of Biomechanical Properties of Single\u2010 and Two\u2010segment Fusion for Denis Type <scp>B<\/scp> Spinal Fractures"],"prefix":"10.1111","volume":"5","author":[{"given":"Yun\u2010shan","family":"Su","sequence":"first","affiliation":[{"name":"Orthopaedic Trauma Service Center The Third Hospital of Hebei Medical University  Shijiazhuang China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dong","family":"Ren","sequence":"additional","affiliation":[{"name":"Orthopaedic Trauma Service Center The Third Hospital of Hebei Medical University  Shijiazhuang China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peng\u2010cheng","family":"Wang","sequence":"additional","affiliation":[{"name":"Orthopaedic Trauma Service Center The Third Hospital of Hebei Medical University  Shijiazhuang China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2013,11,20]]},"reference":[{"key":"e_1_2_5_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/00007632-198311000-00003"},{"key":"e_1_2_5_3_1","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1097\/00003086-199203000-00020","article-title":"Acute burst fractures. 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