• Andrew B Koo, Aladine A Elsamadicy, Adam J Kundishora, Wyatt B David, Megan Lee, Christopher S Hong, Victor Lee, Kristopher T Kahle, and Michael DiLuna.
• Department of Neurosurgery, Yale University School of Medicine, New Haven, Connecticut, USA.
• World Neurosurg. 2020 Apr 1; 136: e347-e354.

ObjectiveThe aim of this study was to evaluate regional variations in the management, complications, and total cost of admission for adolescent idiopathic scoliosis (AIS) treated by elective posterior spinal surgery (PSF, ≥4 levels).MethodsThe Kids' Inpatient Database year 2012 was queried and adolescent patients (age 10-17 years old) with AIS undergoing elective PSF (≥4 levels) were selected. The primary outcome was regional variations for intraoperative and postoperative complications, length of surgery, and total cost of admission after elective PSF intervention.ResultsIn our cohort of 3759 adolescent patients identified, 704 (18.7%) patients were treated in the Northeast, 917 (24.4%) in the Midwest, 1329 (35.4%) in the South, and 809 (21.5%) in the West (Northeast: n = 704; Midwest: n = 917; South: n = 1329; West: n = 809). The Northeast had the greatest complication rate, followed by the Midwest, South, and West region cohorts (Northeast: 27.7% vs. Midwest: 24.5% vs. South: 23.0% vs. West: 17.2%, P < 0.001). On average, length of surgery was shortest in the South (Northeast: 5.3 ± 2.7 days vs. Midwest: 5.3 ± 3.1 days vs. South: 4.9 ± 3.1 days vs. West: 5.3 ± 2.1 days, P < 0.001), while the total cost of admission was greatest in the West (Northeast: $51,760 ± $25,177 vs. Midwest: $55,201 ± $23,750 vs. South: $58,847 ± $28,227 vs. West: $60,636 ± $29,372, P < 0.001).ConclusionsOur study suggests that there may be regional variations in health care resource utilization in AIS patients undergoing multilevel posterior spinal fusions. Further study is warranted to determine the specific factors contributing to disparities in regional outcomes.Published by Elsevier Inc.

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