title: Evaluation of the appropriateness of hip joint replacement techniques.
abstract: OBJECTIVE
  To evaluate the appropriateness of the use of hip joint replacements (HJRs) using explicit criteria developed by an expert panel.
  
  
  METHODS
  Observational study. Nine hundred ninety-seven patients from five hospitals with a diagnosis of osteoarthritis, avascular necrosis, hip fracture, or revision who were undergoing HJR were consecutively included in the study during a 1-year period. The appropriateness of the indication was judged by explicit criteria. Complications were recorded at the time of the intervention and 3 months postoperatively.
  
  
  RESULTS
  Of the 1,030 interventions, 604 were for osteoarthritis, 31 avascular necrosis, 191 fractures, and 204 revisions. No differences were found among the hospitals for the main clinical and patient variables. Indications for surgery were considered appropriate in 59% of cases, uncertain in 32%, and inappropriate in 8%, mainly in the osteoarthritis group. Differences were found in the rates of appropriateness among some centers. The complication rate did not differ among the groups based on the level of appropriateness of the procedure.
  
  
  CONCLUSIONS
  The appropriate use of HJR, as measured by the criteria established by the panel, identified a moderate percentage of inappropriate indications. Those equivocal and inappropriate cases demand further studies to identify patients with an adequate risk-to-benefit ratio from this procedure.
authors.affiliation: Hospital de Galdakao.
authors.forename: J M
authors.initials: JM
authors.lastname: Quintana
authors.forename: J
authors.initials: J
authors.lastname: Azkarate
authors.forename: J I
authors.initials: JI
authors.lastname: Goenaga
authors.forename: I
authors.initials: I
authors.lastname: Aróstegui
authors.forename: I
authors.initials: I
authors.lastname: Beldarrain
authors.forename: J M
authors.initials: JM
authors.lastname: Villar
mesh_terms: D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000706:statistics & numerical data*; D005069:Evaluation Studies as Topic; D005260:Female; D006764:Hospitals, Community; D006801:Humans; D008297:Male; D008875:Middle Aged; D017410:Practice Guidelines as Topic; D011446:Prospective Studies; D014600:Utilization Review