AUTHOR=Wu Qian , Wang Qi , Sun XueCheng , Liu Jun , Zhao Gang , Yu Ping TITLE=Use of controlled nail dynamization technique for femoral shaft hypertrophic nonunion JOURNAL=Frontiers in Surgery VOLUME=Volume 12 - 2025 YEAR=2025 URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2025.1547793 DOI=10.3389/fsurg.2025.1547793 ISSN=2296-875X