High Degree Spondylolisthesis in Adults: Monosegmental Reduction and Fixation in Our Perspective

Abstract

Objective: To evaluate a method to reduce high degree spondylolisthesis in adults with monosegmental fixing preserving the adjacent level and the improvement of sagittal balance. Methods: A prospective study, with 8 adult patients with high degree spondy\olisthesis (III and IV) in adults who underwent surgery by the same team. We included 5 women and 3 men with a mean age of 37 years that had no improvement with conservative treatment. The surgical technique used was total or partial reduction by Spondylolisthesis Reduction Instrument SRI System. Results: The L5-S1 level was involved in five patients, L4-L5 in two and VT-S1 in one patient. Isthmic type predominated in five patients, followed by dysplastic type in two and one a-spondytolisthesis. These patients were assessed by the Oswestry scale. Which showed a preoperative average of 59% and postoperative average of 12.4%. Conclusion: The method of high- grade spondylolisthesis reduction with instrumentation only at the affected level is a treatment option with good results, with control of the pain profile and functional improvement in patients.