Minimally invasive surgical options for adolescent idiopathic scoliosis

Early results of MIS in AIS have been promising; however, longer-term follow-up data remains limited. Our objective was to compare perioperative outcomes as well as radiographic and clinical outcomes between MIS and standard open posterior spinal instrumentation and fusion (PSIF) at 2-year follow-up. Advantages of MIS in AIS were related to intra-operative blood loss, cell saver transfusion rates, and LOS; however, significant increases in ORT, lower mean percent curve correction, and a higher complication rate of MIS in AIS were also noted. Despite these variations, no clinical differences in SRS-22 scores were found at 2 years postop between the groups.