Study Design: Retrospective multicenter cohort-study. Objective: We propose an evidence-
based surgical algorithm for achieving normal pelvic balance while optimizing health-related
quality of life (HRQoL) in high-grade spondylolisthesis. Summary of Background Data: The
principles of surgical treatment for young patients with high-grade L5-S1 spondylolisthesis
remain unclear. There is a growing body of evidence supporting the central role of pelvic
balance in the postural control and biomechanics of subjects with high-grade …

Background: The purpose of this study is to propose an evidence-based surgical algorithm
for achieving normal pelvic balance while optimizing health-related quality of life (HRQOL)
in young patients with high-grade spondylolisthesis. Methods: This retrospective study
assessed a multicentre cohort of 61 patients (aged 14.4 [standard deviation 2.7] yr) with high-
grade L5-S1 spondylolisthesis followed for a minimum of 2 years after surgery. Classification
and regression tree analysis was used to identify objective criteria associated with achieving …