{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T20:27:10Z","timestamp":1789590430183,"version":"build-2803163510"},"reference-count":24,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2025,7,24]],"date-time":"2025-07-24T00:00:00Z","timestamp":1753315200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Med."],"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Pedicle screw fixation is widely utilized in thoracolumbar fractures to restore vertebral height and spinal alignment. Screw head design varies among fixed-axis (rigid), polyaxial (multiplanar mobility), and monoplanar (coronal mobility) types, impacting surgical outcomes. This study compares clinical and radiological outcomes of these screws.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Seventy-five patients (2020\u20132024) with thoracolumbar fractures were divided into three groups: Group A (fixed-axis screws, <jats:italic>n<\/jats:italic>\u202f=\u202f31), Group B (polyaxial screws, <jats:italic>n<\/jats:italic>\u202f=\u202f19), and Group C (monoplanar screws, <jats:italic>n<\/jats:italic>\u202f=\u202f25). Operative time, blood loss, radiographic parameters (anterior body compression index, vertebral body angle, regional Cobb angle), and Visual Analogue Scale (VAS) scores were assessed preoperatively, postoperatively, and at 3 and 12\u202fmonths.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Group C (monoplanar) demonstrated significantly lower blood loss (64\u202f\u00b1\u202f11.1\u202fmL vs. 308.6\u202f\u00b1\u202f88.8\u202fmL, <jats:italic>p<\/jats:italic>\u202f&amp;lt;\u202f0.05) and shorter operative time (88\u202f\u00b1\u202f8.2\u202fmin vs. 158.9\u202f\u00b1\u202f27.8\u202fmin, <jats:italic>p<\/jats:italic>\u202f&amp;lt;\u202f0.05) than Group A, with no significant differences compared to Group B. Postoperative VAS improved across all groups (<jats:italic>p<\/jats:italic>\u202f&amp;lt;\u202f0.05), though Group A had slightly higher scores. Radiographic correction loss occurred in all groups at 12\u202fmonths (<jats:italic>p<\/jats:italic>\u202f&amp;lt;\u202f0.05), but was more pronounced in Group B. No complications (infection, nerve injury) were observed.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Monoplanar pedicle screws, combining coronal mobility for minimally invasive placement and sagittal rigidity for stability, reduce blood loss and operative time compared to fixed-axis screws while maintaining comparable correction retention to polyaxial screws. These findings position monoplanar screws as a balanced option for thoracolumbar fracture fixation, optimizing minimally invasive benefits without compromising mechanical strength.<\/jats:p><\/jats:sec>","DOI":"10.3389\/fmed.2025.1605583","type":"journal-article","created":{"date-parts":[[2025,7,24]],"date-time":"2025-07-24T05:33:13Z","timestamp":1753335193000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["Retrospective analysis of clinical and radiological outcomes of thoracolumbar vertebral fractures treated with monoplanar pedicle screws compared with fixed-axis and polyaxial screws"],"prefix":"10.3389","volume":"12","author":[{"given":"Wei","family":"Duan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Zhao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Le","family":"Chang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhen","family":"Sun","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kangwei","family":"Lai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jingchun","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Buqi","family":"Tian","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhengxu","family":"Ye","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2025,7,24]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"145","DOI":"10.1016\/j.spinee.2012.10.041","article-title":"Management 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