Ninety-day postoperative cost in primary total hip arthroplasty: an economic model comparing surgical approaches

Figures & data

Figure 1 Determinants of per-patient health care cost through 90 days after primary THA with the AA or a matched sample of primary THA cases in the USA (Control).

Abbreviations: AA, anterior approach; THA, total hip arthroplasty.

Figure 2 Cumulative cost curve comparing per-patient costs through 90 days after primary total hip arthroplasty using the AA or a matched sample of primary total hip arthroplasty cases in the USA (Control).

Note: Mean health care costs were $6,207 (95% CI: $5,210–$7,204) lower with AA.
Abbreviation: AA, anterior approach.

Table 1 Base-case model inputs

Description	Base-case value	Source
Mean cost ($)a
Procedure/hospital stay, AA	10,918 (100)	^Citation8
Procedure/hospital stay, Control	12,879 (100)	^Citation8
Home health care, AA	1,695 (60)	^Citation8
Home health care, Control	2,104 (200)	^Citation8
Skilled nursing, AA	1,249 (200)	^Citation8
Skilled nursing, Control	2,964 (200)	^Citation8
Inpatient rehabilitation, AA	179 (60)	^Citation8
Inpatient rehabilitation, Control	969 (150)	^Citation8
Outpatient care, AA	362 (30)	^Citation8
Outpatient care, Control	331 (15)	^Citation8
Readmission, AA	563 (100)	^Citation8
Readmission, Control	1,274 (200)	^Citation8
Adjusted cost inputsb
Proportion of privately insured primary THA patients	35.83%	^Citation11
Ratio of private payer-to-Medicare cost	1.68	^Citation10

Note:

a Values are mean (standard error), reported in 2016 US dollars, and adjusted based on the Consumer Price Index for Medical Care;

b Applied to costs of procedure/hospital stay and readmissions.

Abbreviations: AA, anterior approach; THA, total hip arthroplasty.

KamathAFChitnisASHolyCMedical resource utilization and costs for total hip arthroplasty: benchmarking an anterior approach technique in the Medicare populationJ Med Econ201821221822429034792

 PubMed Web of Science ®Google Scholar

Agency for Healthcare Research and QualityHCUP national inpatient sample (NIS)Healthcare Cost and Utilization Project2014 Available from: www.hcup-us.ahrq.gov/nisoverview.jspAccessed July 10, 2018

 Google Scholar

America’s Health Insurance PlansNational comparisons of commercial and Medicare fee-for-service payments to hospitals2016 Available from: https://www.ahip.org/wp-content/uploads/2016/02/HospitalPri-ceComparison_2.10.16.pdfAccessed May 11, 2018

 Google Scholar