title: Rehospitalizations, early revisions, infections, and hospital resource use in the first year after hip and knee arthroplasties.
abstract: We examined 3 negative outcomes for 58 351 hip and knee arthroplasty patients: rehospitalization, revision and infection, and their impact on resource use in the year after surgery. In the year before surgery, 12.9% of elective hip and 10.2% of knee patients were hospitalized. In the year after, 14.8% of elective hip and 15.5% of knee patients were hospitalized, representing a 15% and 52% increase, respectively. Twenty-eight percent of emergent hip patients were hospitalized at least once preoperatively; this did not change after surgery. Revision occurred in 2.0% of emergent hip, 1.7% of elective hip, and 0.9% of knee patients. Joint infection was diagnosed in 1.3% of patients. The increased hospitalization after the elective hip and knee procedures represents an incremental cost of 10% over the index hospital stay.
authors.affiliation: Department of Surgery, University of Manitoba, Concordia Joint Replacement Group, Concordia Hip and Knee Institute, Winnipeg, Manitoba, Canada.
authors.forename: Eric R
authors.initials: ER
authors.lastname: Bohm
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Dunbar
authors.forename: Jennifer J
authors.initials: JJ
authors.lastname: Frood
authors.forename: Tracy M
authors.initials: TM
authors.lastname: Johnson
authors.forename: Kathleen A
authors.initials: KA
authors.lastname: Morris
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000706:statistics & numerical data*; D019645:Arthroplasty, Replacement, Knee / Q000706:statistics & numerical data*; D002170:Canada; D005500:Follow-Up Studies; D006295:Health Resources / Q000706:statistics & numerical data*; D006761:Hospitals / Q000706:statistics & numerical data*; D006801:Humans; D017063:Outcome Assessment, Health Care / Q000706:statistics & numerical data; D010359:Patient Readmission / Q000706:statistics & numerical data*; D015995:Prevalence; D016459:Prosthesis-Related Infections / Q000453:epidemiology*; D012086:Reoperation / Q000706:statistics & numerical data; D012189:Retrospective Studies