Time, Resident Involvement, and Supply Drive Cost Variability in Septoplasty with Turbinate Reduction.

Objective To determine factors that influence cost variability in septoplasty with inferior turbinate reduction. Study Design Case series with chart review. Setting Tertiary care hospital and affiliated ambulatory surgical center. Subjects and Methods Surgical costs were reviewed for adult patients undergoing septoplasty with inferior turbinate reduction between December 2014 and September 2017. Cases where additional procedures were performed were excluded. Operative supply costs, operative time, room time, and resident involvement were determined. Contribution of these factors to total costs and variability were analyzed. Results The study included 116 patients (mean age, 38 years) and 4 faculty surgeons. Total cost was primarily driven by operative time (74%), with a smaller portion of total cost arising from supplies (26%). Time cost ( P < .0001) and supply cost ( P = .006) varied significantly among surgeons. A resident was involved in 46.6% of cases. When subanalyzed by resident year, no-resident and senior resident (postgraduate years 4 and 5) cases had nearly identical mean times, while junior resident (postgraduate years 1-3) cases had mean times and operative time costs that were 39% greater ( P < .001). Conclusion For septoplasty with inferior turbinate reduction, the greatest driver of cost variation was operative time. Resident involvement correlated with increased time and cost. Supply costs had a much smaller impact. When subanalyzed by resident year, junior resident-involved cases were significantly longer than no-resident cases.