title: Validation of the French version of two on high-activity knee questionnaires.
abstract: BACKGROUND
  Self-administered quality-of-life questionnaires are valuable evaluation tools in orthopedic surgery. The conventional questionnaires are limited by a substantial ceiling effect. We wished to validate a French translation of two English questionnaires for high-activity patients: the High-Activity Arthroplasty Score (HAAS) and the Activity Scale for Arthroplasty Patients (ASAP). One hundred patients operated on for knee replacement were selected. The answers to both questionnaires were analyzed and compared to the Oxford Knee Score (OKS) and to the scoring system of the American Knee Society (AKS).
  
  
  OBJECTIVE
  There is no correlation between the results of both high-activity questionnaires and of the two conventional scoring systems.
  
  
  RESULTS
  All questions were easily understood. The mean scores of the HAAS and ASAP questionnaires were 8.2±3.0 and 30.7±9.6, respectively. The distributions were not considered normal. There was no floor effect, but there was a limited ceiling effect (0% and 14%, respectively). The internal coherence of both questionnaires was satisfactory. There was a significant correlation between the high-activity scores and the conventional scores.
  
  
  CONCLUSIONS
  Both high-activity questionnaires in our French translation can potentially measure the overall function of a patient after knee replacement as accurately as the index English version. It is self-administered, easy to use, can collect patients' answers by postage mailing, and involves no ceiling effect. All these points should allow its routine use for evaluation after knee replacement. The HAAS evaluation seems to be superior to the ASAP evaluation.
  
  
  METHODS
  Case-control study, level III.
authors.affiliation: Centre de chirurgie orthopédique et de la main, hôpitaux universitaires de Strasbourg, 10, avenue Baumann, 67400 Illkirch, France.
authors.forename: Y
authors.initials: Y
authors.lastname: Diesinger
authors.affiliation: Centre de chirurgie orthopédique et de la main, hôpitaux universitaires de Strasbourg, 10, avenue Baumann, 67400 Illkirch, France. Electronic address: jean-yves.jenny@chru-strasbourg.fr.
authors.forename: J-Y
authors.initials: JY
authors.lastname: Jenny
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D019645:Arthroplasty, Replacement, Knee; D004185:Disability Evaluation; D005260:Female; D005602:France; D006801:Humans; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000601:surgery; D011788:Quality of Life; D011795:Surveys and Questionnaires; D014177:Translations
keywords: Knee; PROM (Patient reported outcome measures); Quality-of-life questionnaire; Scoring system; Total knee prosthesis