title: Complications, mortality, and costs for outpatient and short-stay total knee arthroplasty patients in comparison to standard-stay patients.
abstract: 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.
authors: Exponent Inc., Menlo Park, California.
authors: Scott T
authors: ST
authors: Lovald
authors: Exponent Inc., Philadelphia, Pennsylvania.
authors: Kevin L
authors: KL
authors: Ong
authors: University of Louisville, Department of Orthopedic Surgery, Louisville, Kentucky.
authors: Arthur L
authors: AL
authors: Malkani
authors: Exponent Inc., Menlo Park, California.
authors: Edmund C
authors: EC
authors: Lau
authors: Exponent Inc., Alexandria, Virginia.
authors: Jordana K
authors: JK
authors: Schmier
authors: Exponent Inc., Philadelphia, Pennsylvania.
authors: Steven M
authors: SM
authors: Kurtz
authors: Homer Stryker Center for Orthopedic Education, Mahwah, New Jersey.
authors: Michael T
authors: MT
authors: Manley
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000556:Ambulatory Surgical Procedures / Q000009:adverse effects* / Q000191:economics / Q000401:mortality; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects* / Q000191:economics / Q000401:mortality; D003365:Costs and Cost Analysis; D006801:Humans; D007902:Length of Stay; D006278:Medicare / Q000706:statistics & numerical data; D011183:Postoperative Complications / Q000453:epidemiology; D014481:United States / Q000453:epidemiology
keywords: complications; costs; mortality; outpatient; short-stay; total knee arthroplasty