Projected Medicare Savings Associated With Lowering the Risk of Total Hip Arthroplasty Revision: An Administrative Claims Data Analysis.

Abstract:

:In the United States, demand for total hip arthroplasty (THA) and THA revision procedures are increasing due to an aging population, a longer life expectancy, and an increasing prevalence of osteoarthritis. This retrospective cohort study identified patients 65 years and older in the Medicare 5% Standard Analytic Files who underwent THA for osteoarthritis between January 1, 2009, and September 30, 2010. The authors estimated the 5-year cumulative revision risk (CRR) using the Kaplan-Meier method, revision-related complications, and Medicare expenditures. Using a 6.22% compound annual growth rate from the Healthcare Cost and Utilization Project of the Agency for Healthcare Research and Quality, the authors estimated the number of THAs that will be performed from 2018 to 2027 and calculated the 10-year projected savings to Medicare for a 1% reduction in CRR. Among 7820 patients, the mean age was 74.4 years, and 62.4% were female. Cumulative revision risk was 4.2% at 5 years (through September 30, 2015), with 30.8% of revisions occurring within 90 days of the THA. At least 24.4% of revision patients had a complication. Median revision inpatient stay and episode of care (through 90 days) expenditures were $23,847 and $36,157, respectively. With a 1% absolute reduction in CRR, Medicare could save $697 million over a 10-year period, or $985 million when including Medicare Advantage, which represented 29.2% of 2016 Medicare payments. Strategies to reduce the risk of THA revision, such as the use of implant constructs with lower CRR and value-based payment models, are needed to achieve Medicare payment reductions while maintaining or improving quality of care for Medicare beneficiaries. [Orthopedics. 2019; 42(1):e86-e92.].

journal_name

Orthopedics

journal_title

Orthopedics

authors

Ackerman SJ,Knight T,Wahl PM

doi

10.3928/01477447-20181120-03

subject

Has Abstract

pub_date

2019-01-01 00:00:00

pages

e86-e92

issue

1

eissn

0147-7447

issn

1938-2367

journal_volume

42

pub_type

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