title: Outcomes after hip or knee replacement surgery for osteoarthritis. A prospective cohort study comparing patients' quality of life before and after surgery with age-related population norms.
abstract: OBJECTIVE
  To compare the health-related quality of life of people with osteoarthritis before and after primary total hip and knee replacement surgery with that of the general Australian population.
  
  
  METHODS
  A prospective cohort study.
  
  
  METHODS
  Three Sydney hospitals, public and private.
  
  
  METHODS
  Patients with osteoarthritis undergoing primary total hip (n = 59) and knee (n = 92) joint replacement surgery.
  
  
  METHODS
  Medical Outcomes Study Short Form (SF-36) scores before and 12 months after joint replacement surgery (compared with population norms).
  
  
  RESULTS
  Patients in each age group showed a significant improvement in health-related quality of life after joint replacement surgery in most scales of the SF-36, particularly physical function, role physical and bodily pain. SF-36 scores for the 42 hip-replacement patients aged 55-74 years improved to equal or exceed the population norm on all scales. SF-36 scores of the 52 knee replacement patients aged 55-74 years improved, but physical function and bodily pain scores remained significantly worse than the population norm. SF-36 scores for both hip (n = 17) and knee (n = 40) replacement patients aged 75 years and over improved significantly, becoming similar to population norms for this age group.
  
  
  CONCLUSIONS
  Total hip or knee replacement for osteoarthritis significantly improves patient health and well-being at 12 months after surgery. Age alone should not be a barrier to surgery.
authors.affiliation: University of Sydney, Department of Rheumatology, Royal North Shore Hospital, NSW. lmarc@doh.health.nsw.gov.au
authors.forename: L M
authors.initials: LM
authors.lastname: March
authors.forename: M J
authors.initials: MJ
authors.lastname: Cross
authors.forename: H
authors.initials: H
authors.lastname: Lapsley
authors.forename: A J
authors.initials: AJ
authors.lastname: Brnabic
authors.forename: K L
authors.initials: KL
authors.lastname: Tribe
authors.forename: C J
authors.initials: CJ
authors.lastname: Bachmeier
authors.forename: B G
authors.initials: BG
authors.lastname: Courtenay
authors.forename: P M
authors.initials: PM
authors.lastname: Brooks
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip; D019645:Arthroplasty, Replacement, Knee; D001315:Australia; D015897:Comorbidity; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010003:Osteoarthritis / Q000523:psychology / Q000601:surgery*; D017063:Outcome Assessment, Health Care; D017060:Patient Satisfaction; D011184:Postoperative Period; D011446:Prospective Studies; D011788:Quality of Life; D011795:Surveys and Questionnaires