@article{carelli_bianconi_silva_barros_2025,  title={Total <i>en bloc</i> sacrectomy through a posterior-only approach with the “Modified Cathedral” technique: technical note},  volume={24},  ISSN={1808-1851},  url={https://doi.org/10.1590/S1808-185120252404302237},  DOI={10.1590/S1808-185120252404302237},  number={4},  journal={Coluna/Columna},  publisher={Sociedade Brasileira de Coluna},  author={Carelli, Luís E. and Bianconi, Alessandro Maria and Silva, Octavio Augusto Tomé da and Barros, Alderico Girão Campos de},  year={2025},  pages={e302237} }