Saad M, Mowafy AA, Taha AN, Shalaby AR, Shahein M, Ali H. Effect of sparing S1 motion segment on spinopelvic-sagittal balance relationship and its impact on pain and functional outcome: A retrospective cohort study of single center experience . roneuro [Internet]. 2024 Dec. 30 [cited 2026 Apr. 19];38(4):385-94. Available from: https://journals.lapub.co.uk/index.php/roneurosurgery/article/view/2895