title: Outcomes after inpatient rehabilitation of primary and revision total hip arthroplasty.
abstract: OBJECTIVE
  To compare the outcomes of patients who have gone to inpatient rehabilitation after primary total hip arthroplasty (THA) and revision THA.
  
  
  METHODS
  Retrospective, comparative study.
  
  
  METHODS
  Fifty-bed freestanding, university-affiliated rehabilitation hospital.
  
  
  METHODS
  Two hundred fifty-five male and female primary THA patients and 147 male and female revision THA patients.
  
  
  METHODS
  Interdisciplinary inpatient rehabilitation.
  
  
  METHODS
  Length of stay (LOS), FIM instrument score and FIM motor score components, hospital charges, and discharge disposition location.
  
  
  RESULTS
  FIM scores improved from admission to discharge by 29.7 and 27.9 points for the primary THA and revision THA groups, respectively (P<.05). LOS was shorter for primary THA patients compared with revision THA patients (10.0d vs 11.5d, P<.05). FIM efficiency (DeltaFIM/LOS) was greater for primary THA compared with revision THA (3.4 and 2.7 points/day, P<.05). Total rehabilitation hospital charges were 11,421 US dollars and 13,707 US dollars for the primary and revision THA groups, respectively, with the mechanical and infection revision THAs incurring the greatest charges (14,596 US dollars and 15,386 US dollars, respectively; P<.001). Compared with primary THA, revision THA patients were twice as likely to be discharged to locations other than home.
  
  
  CONCLUSIONS
  FIM score improvement was lower and LOS and hospital charges were greater in revision THA than in primary THA after rehabilitation. Infection revision THA patients gained less functional independence and were discharged home less often than mechanical or pain revision THA patients; finally, infection and mechanical revision THA accrued the highest hospital charges.
authors.affiliation: Department of Physical Medicine and Rehabilitation, University of Virginia Health System, Charlottesville, 22908, USA. kv8p@virginia.edu
authors.forename: Kevin R
authors.initials: KR
authors.lastname: Vincent
authors.forename: Heather K
authors.initials: HK
authors.lastname: Vincent
authors.forename: Laura W
authors.initials: LW
authors.lastname: Lee
authors.forename: Jenpin
authors.initials: J
authors.lastname: Weng
authors.forename: Alan P
authors.initials: AP
authors.lastname: Alfano
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000704:Analysis of Variance; D019644:Arthroplasty, Replacement, Hip / Q000191:economics / Q000534:rehabilitation*; D005260:Female; D017722:Hospital Charges; D006801:Humans; D007297:Inpatients; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D008875:Middle Aged; D012047:Rehabilitation Centers; D012086:Reoperation; D012189:Retrospective Studies; D018709:Statistics, Nonparametric; D016896:Treatment Outcome