title: Patients' Expectations Impact Their Satisfaction following Total Hip or Knee Arthroplasty.
abstract: BACKGROUND
  The objective of this study was to assess the number and magnitude of preoperative expectations and to correlate them with the degree of satisfaction expressed one year after Total Hip Arthroplasty (THA) or Total Knee Arthroplasty (TKA), in patients with severe and painful osteoarthritis (OA).
  
  
  METHODS
  Preoperative expectations (within 20 days prior to surgery) and postoperative satisfaction (one year after the intervention) were measured using the previously validated French version of the Hospital for Special Surgery Hip or Knee Replacement Expectations Survey. Postoperative satisfaction was measured using a specific scale, following the same methodology as that used for the assessment of expectations. Prediction of the satisfaction of the patients was performed using multivariate linear regression modelling.
  
  
  RESULTS
  A total of 138 patients (80 THA and 58 TKA) completed the two parts of the study. The expectations score (mean ± SD) (range 0-100) was 72.58 ± 12.63 before THA and 69.10 ± 13.72 before TKA (p = 0.13). The number of expectations expressed was 14.34 ± 1.32 (out of a potential maximum of 18) before THA and 14.70 ± 2.29 (out of a potential maximum of 19) before TKA. After 1 year, THA generated a significantly higher degree of satisfaction compared to TKA (69.70 ± 14.46 v 60.44 ± 17.54, p<0.001) (range 0-100). The pre-operative expectations score was the single best positive predictor of the post-surgery satisfaction assessment both for TKA and THA.
  
  
  CONCLUSIONS
  Patients undergoing total joint arthroplasty for end-stage OA have a high level of expectations, before both THA and TKA. While both types of interventions significantly improve essential and non-essential activities, the rate of satisfaction is significantly greater post THA. Preoperative expectations are a major contributor to the final degree of satisfaction, one year after surgery. These results re-emphasize the need for an optimal preoperative interaction between health care providers and patients, to allow patients a chance to foresee a reasonable outcome after TJA.
authors.affiliation: Department of Public Health, Epidemiology and Health Economics, University of Liege, Belgium.|Physical Medicine and Sport Traumatology Service, Motility Sciences Department, CHU, Liege, Belgium.
authors.forename: Audrey
authors.initials: A
authors.lastname: Neuprez
authors.affiliation: Department of Orthopaedic Surgery, CHBAH, Seraing, Belgium.
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Delcour
authors.affiliation: Department of Orthopaedic Surgery, CHC, Liege, Belgium.
authors.forename: Firouzeh
authors.initials: F
authors.lastname: Fatemi
authors.affiliation: Department of Orthopaedic Surgery, CHU, Liege, Belgium.
authors.forename: Philippe
authors.initials: P
authors.lastname: Gillet
authors.affiliation: Physical Medicine and Sport Traumatology Service, Motility Sciences Department, CHU, Liege, Belgium.
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Crielaard
authors.affiliation: Department of Public Health, Epidemiology and Health Economics, University of Liege, Belgium.
authors.forename: Olivier
authors.initials: O
authors.lastname: Bruyère
authors.affiliation: Department of Public Health, Epidemiology and Health Economics, University of Liege, Belgium.
authors.forename: Jean-Yves
authors.initials: JY
authors.lastname: Reginster
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000523:psychology*; D019645:Arthroplasty, Replacement, Knee / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction / Q000706:statistics & numerical data*; D011446:Prospective Studies; D011788:Quality of Life; D020127:Recovery of Function / Q000502:physiology; D011795:Surveys and Questionnaires; D016896:Treatment Outcome