National Inpatient Datasets May No Longer Be Appropriate for Overall Total Hip and Knee Arthroplasty Projections after Removal from Inpatient-Only Lists.
Pedro J RullanAhmed K EmaraGuangjin ZhouIgnacio PasqualiniAlison K KlikaSiran M KoroukianWael K BarsoumNicolas Santiago PiuzziPublished in: The journal of knee surgery (2023)
Projections based on 2008-to-2017 data estimated up to 240,000 (23%) more annual TKAs by 2050, compared to projections based on 2008-to-2018 data. The largest discrepancy among THA projections was an 8.2% difference (99,000 THAs) for 2050. After 2018 for TKA, and potentially 2020 for THA, projections based on the NIS will have to be interpreted with caution and may only be appropriate to estimate future inpatient volume.