title: Patient selection in outpatient and short-stay total knee arthroplasty.
abstract: The purpose of the current study is to identify patients who are at high risk for rehospitalization, revision, complications, and mortality after outpatient and short-stay total knee arthroplasty (TKA). The Medicare 5% limited data set sample was used to identify patients with a TKA procedure who were treated in an outpatient setting or who were discharged within 1 or 2 days in the hospital setting. Rehospitalization risk increased with higher Charlson score (i.e., poorer health status), older patients, inpatients (vs. outpatients), patients not receiving a femoral nerve block, earlier (vs. recent) year of surgery, and those with a recent history of heart failure. The findings of this study suggest that existing comorbidities, particularly heart failure, have the greatest effect on event risk after outpatient and short-stay TKA. The information obtained from this study should assist with patient selection for TKA performed on an outpatient basis.
authors.affiliation: Exponent, Inc., Menlo Park, California.
authors.forename: Scott
authors.initials: S
authors.lastname: Lovald
authors.forename: Kevin
authors.initials: K
authors.lastname: Ong
authors.forename: Edmund
authors.initials: E
authors.lastname: Lau
authors.forename: Girish
authors.initials: G
authors.lastname: Joshi
authors.forename: Steven
authors.initials: S
authors.lastname: Kurtz
authors.forename: Arthur
authors.initials: A
authors.lastname: Malkani
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000556:Ambulatory Surgical Procedures / Q000009:adverse effects; D019645:Arthroplasty, Replacement, Knee / Q000009:adverse effects* / Q000706:statistics & numerical data; D015897:Comorbidity; D005260:Female; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D008297:Male; D009026:Mortality; D018579:Patient Selection; D011183:Postoperative Complications / Q000453:epidemiology* / Q000209:etiology; D012086:Reoperation / Q000706:statistics & numerical data; D012189:Retrospective Studies; D018570:Risk Assessment; D014481:United States / Q000453:epidemiology