A comprehensive analysis of Medicare trends in utilization and hospital economics for total knee and hip arthroplasty from 2005 to 2011

Benedict U Nwachukwu, Frank McCormick, Matthew T Provencher, Martin Roche, Harry E Rubash
Journal of Arthroplasty 2015, 30 (1): 15-8
The purpose of this study was to determine annual Medicare utilization and hospital reimbursement rates for total knee arthroplasty (TKA) and total hip arthroplasty (THA). A PearlDiver review of the entire Medicare database was conducted: 2,040,667 TKAs and 855, 899 THAs performed between 2005 and 2011 were identified. There was a +0.05% and +1.3% year over year growth in the utilization in hospital reimbursement for TKA and THA respectively. There has only been a modest increase in joint arthroplasty utilization for Medicare beneficiaries. Supply side issues, insurance mix and possible prior over-projection may explain this finding. Reimbursement trends suggest that joint arthroplasty may not be a major cost driver for the healthcare system.

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