Association of Postoperative Slip Reduction With Patient-Reported Outcomes at Two Years After Fusion Surgery for Low-Grade Degenerative Spondylolisthesis: A Single-Center Study - Tom Folkerts; Julia Wimmer; Lukas Schönnagel; Anna-Maria Mielke; Bruno Verna; Pedro Rocha Torres; Paul Köhli; Jiaqi Zhu; Jennifer Shue; Rolando Duculan; Andrew A. Sama; Federico P. Girardi; et al. (Global Spine Journal, 2026)