title: Validation of a Danish version of the Toronto Extremity Salvage Score questionnaire for patients with sarcoma in the extremities.
abstract: BACKGROUND
  The Toronto Extremity Salvage Score (TESS) questionnaire is a self-administered questionnaire designed to assess physical disability in patients having undergone surgery of the extremities. The aim of this study was to validate a Danish translation of the TESS.
  
  
  METHODS
  The TESS was translated according to international guidelines. A total of 22 consecutive patients attending the regular outpatient control programme were recruited for the study. To test their understanding of the questionnaires, they were asked to describe the meaning of five randomly selected questions from the TESS. The psychometric properties of the Danish version of TESS were tested for validity and reliability. To assess the test-retest reliability, the patients filled in an extra TESS questionnaire one week after they had completed the first one.
  
  
  RESULTS
  Patients showed good understanding of the questionnaire. There was a good internal consistency for both the upper and lower questionnaire measured by Cronbach's alpha. A Bland-Altman plot showed acceptable limits of agreement for both questionnaires in the test-retest. There was also good intraclass correlation coefficients for both questionnaires. The validity expressed as Spearman's rank correlation coefficient comparing the TESS with the QLQ-C30 was 0.89 and 0.90 for the questionnaire on upper and lower extremities, respectively.
  
  
  CONCLUSIONS
  The psychometric properties of the Danish TESS showed good validity and reliability.
  
  
  BACKGROUND
  not relevant.
  
  
  BACKGROUND
  not relevant.
authors.affiliation: Afdeling for Eksperimentel Klinisk Onkologi, Aarhus Universitetshospital, Nørrebrogade 44, Bygning 5, 8000 Aarhus C, Denmark. caspersaebye@studmed.au.dk.
authors.forename: Casper
authors.initials: C
authors.lastname: Sæbye
authors.forename: Akmal
authors.initials: A
authors.lastname: Safwat
authors.forename: Anne Kathrine
authors.initials: AK
authors.lastname: Kaa
authors.forename: Ninna Aggerholm
authors.initials: NA
authors.lastname: Pedersen
authors.forename: Johnny
authors.initials: J
authors.lastname: Keller
mesh_terms: D000328:Adult; D000368:Aged; D003718:Denmark; D004185:Disability Evaluation; D005121:Extremities / Q000601:surgery*; D005260:Female; D006801:Humans; D023821:Limb Salvage; D008297:Male; D008875:Middle Aged; D011594:Psychometrics; D015203:Reproducibility of Results; D012509:Sarcoma / Q000601:surgery*; D011795:Surveys and Questionnaires; D014177:Translations; D016896:Treatment Outcome