Frantzén, Aron, Antti Saarinen, Eetu Suominen, Matti Ahonen, and Ilkka Helenius. 2025. “Mechanical Axial Instability of Segmental Pedicle Screw Instrumentation for Adolescent Idiopathic Scoliosis: A Retrospective Cohort Study of Tulip Screw Versus Dual Locking Cup Instrumentation”. Acta Orthopaedica 96 (July):540–546. https://doi.org/10.2340/17453674.2025.44038.