AUTHOR=Jiang Chenyu , Ouyang Hanqiang , Li Yali , Lang Ning , Zhang Yan , Jiang Liang , Yuan Huishu TITLE=Craniocaudal cyclic load improves risk assessment of lumbar pedicle screw loosening: finite element analysis based on computer tomography JOURNAL=Frontiers in Bioengineering and Biotechnology VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/bioengineering-and-biotechnology/articles/10.3389/fbioe.2025.1542352 DOI=10.3389/fbioe.2025.1542352 ISSN=2296-4185