163 Assessing the Economic Benefit of Enhanced Recovery After Surgery (ERAS) Protocols in Adult Cervical Deformity Patients: Is the Initial Additive Cost of Protocols Offset by Clinical Gains

Abstract

INTRODUCTION: The economic benefit of ERAS protocols, nor the heterogeneous components that make up such protocols, has not been established. METHODS: CD patients =18 yrs with pre-(BL) and up to 2-year (2Y) postop data were stratified by enrollment in Standard-of-Care ERAS beginning in 2020. Differences in pre, peri-, and post-operative factors were assessed via means comparison analysis. Costs were calculated using PearlDiver database estimates from Medicare pay-scales. QALY was calculated using NDI mapped to SF6D using validated methodology with 3% discount rate to account for residual decline to life expectancy. RESULTS: 270 patients were included (58.11 ± 11.97 years, 48% female). 54 (20.0%) received ERAS protocol recovery treatment post-operatively. Peri-operatively, ERAS+ patients also reported lower mean LOS overall (4.33 vs 5.84, p = .393), and were more likely to be discharged directly to home (χ2(1) = 4.974, p = .028). Per cost analysis, ERAS+ patients reported a lower mean total 2Y cost of 33,829 USD compared to ERAS- patients at 36,951 (p < .001). Furthermore, ERAS+ patients trended towards greater life-expectancy 2Y QALYs gained versus ERAS- patients (.423 vs .368, p = .051), and demonstrated lower costs at reoperation by 2Y (7050 USD vs 8110, p < .001). Controlling for age, surgical invasiveness, and deformity per BL TS-CL, ERAS+ patients below 70 years old were more likely to achieve a cost-effective outcome by 2Y compared to their ERAS- counterparts (OR: 1.011 [1.001 – 1.999, p = .048]. CONCLUSIONS: Patients undergoing Enhanced Recovery After Surgery (ERAS) protocols experience lower operative times, length of stay, and rates of peri-and and post-operative complications. Subsequently, this study demonstrates that ERAS programs in ACD surgery demonstrate improved cost-effectiveness and reduced total cost by 2Y post-operatively. Due to the potential economic benefit of ERAS for patients, physicians and instutions should consider incorporation of ERAS into practice for eligible patients.