Evaluation of the degenerative lumbar spondylolisthesis instability classification (DSIC) system as a guide to surgical technique selection. - Leinweber KA; Baltic SP; Lyons KW; Mariaux F; Mannion AF; Werth PM; Fekete T; Porchet F; McGuire KJ; Lurie JD; Pearson AM (European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society, 2025)