The Journal of Arthroplasty, Volume 29, Issue 3, 510 - 515

Complications, Mortality, and Costs for Outpatient and Short-Stay Total Knee Arthroplasty Patients in Comparison to Standard-Stay Patients

Lovald, Scott T. et al.
Knee

The purpose of the present study is to determine the differences in cost, complications, and mortality between knee arthroplasty (TKA) patients who stay the standard 3–4 nights in a hospital compared to patients who undergo an outpatient procedure, a shortened stay or an extended stay. TKA patients were identified in the Medicare 5% sample (1997–2009) and separated into the following groups: outpatient, 1–2 days, 3–4 days, or 5+ days inpatient. At two years, costs associated with the outpatient and the 1–2 day stay groups were $8527 and $1967 lower than the 3–4 day stay group, respectively. Out to 2 years, the outpatient and 1–2 day stay groups reported less pain and stiffness, respectively, though the 1–2 day group also had a higher risk for revision.


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