title: [Translation and psychometric testing of the Western Ontario Rotator Cuff Index (WORC) for use in Germany].
abstract: OBJECTIVE
  At the moment a specific subjective measurement tool for evaluation of German-speaking patients with a pathology of the rotator cuff is lacking. Following international guidelines, the German translation and the psychometric testing of the 21-item, multidimensional Western Ontario Rotator Cuff Index (WORC) is the aim of the study.
  
  
  METHODS
  After translation and cross-culture adaptation of the English original, the reliability, validity, practicability and the acceptance of the German version of the WORC were tested on 102 patients with an impingement syndrome. Additionally the SF-36, the Constant and UCLA score were evaluated.
  
  
  RESULTS
  The Pearson correlation coefficient showed with 0.96 an excellent result for the test-retest reliability. The internal consistency showed a high homogeneity with a Cronbach alpha coefficient of 0.96. A Pearson correlation coefficient between 0.66-0.81 registered a high correlation with the physical subscales of the SF-36, the Constant and the UCLA score. The mean time required for filling out the WORC was 7.5 minutes, the mean time required for evaluation was 10 minutes. The acceptance and the understanding were very high.
  
  
  CONCLUSIONS
  After successful translation and psychometric testing of the German version of the Western Ontario Rotator Cuff Index (WORC), a patient-based measurement tool for evaluating the quality of life of German-speaking patients with pathology of the rotator cuff is available.
authors.affiliation: Universitätsklinik für Orthopädie, Wien. w.huber@univie.ac.at
authors.forename: W
authors.initials: W
authors.lastname: Huber
authors.forename: J G
authors.initials: JG
authors.lastname: Hofstaetter
authors.forename: B
authors.initials: B
authors.lastname: Hanslik-Schnabel
authors.forename: M
authors.initials: M
authors.lastname: Posch
authors.forename: C
authors.initials: C
authors.lastname: Wurnig
mesh_terms: D000328:Adult; D000368:Aged; D001317:Austria; D003431:Cross-Cultural Comparison; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011594:Psychometrics / Q000706:statistics & numerical data; D011788:Quality of Life / Q000523:psychology*; D015203:Reproducibility of Results; D019534:Shoulder Impingement Syndrome / Q000175:diagnosis / Q000523:psychology*; D018434:Sickness Impact Profile; D014175:Translating