Perioperative Spending on Spinal Fusion for Scoliosis for Children With Medical Complexity.

Background: Global payment is used with surgeries to optimize health, lower costs, and improve quality. We assessed perioperative spending on spinal fusion for scoliosis to inform how this might apply to children.

Methods: Retrospective analysis of 1249 children using Medicaid and aged ≥5 years with a complex chronic condition undergoing spinal fusion in 2013 from 12 states. From perioperative health services measured 6 months before and 3 months after spinal fusion, we simulated a spending reallocation with increased preoperative care and decreased hospital care.

Results: Perioperative spending was $112 353 per patient, with 77.9% for hospitalization, 12.3% for preoperative care, and 9.8% for postdischarge care. Primary care accounted for 0.2% of total spending; 15.4% and 49.2% of children had no primary care visit before and after spinal fusion, respectively. Compared with having no preoperative primary care visit, 1 to 2 visits were associated with a 12% lower surgery hospitalization cost ( = .05) and a 9% shorter length of stay (LOS) ( = .1); ≥3 visits were associated with a 21% lower hospitalization cost ( < .001) and a 14% shorter LOS ( = .01). Having ≥3 preoperative primary care visits for all children would increase total perioperative spending by 0.07%. This increased cost could be underwritten by a 0.1% reduction in hospital LOS or a 1.0% reduction in 90-day hospital readmissions.

Conclusions: Hospital care accounted for most perioperative spending in children undergoing spinal fusion. Multiple preoperative primary care visits were associated with lower hospital costs and shorter hospitalizations. Modestly less hospital resource use could underwrite substantial increases in children's preoperative primary care.