title: Error estimates in novice and expert raters for the KT-1000 arthrometer.
abstract: METHODS
  Single group repeated measures with multiple raters.
  
  
  OBJECTIVE
  To determine the inter-rater reliability of KT-1000 measurements of novice and experienced raters and to provide error estimates for these raters.
  
  
  BACKGROUND
  The KT-1000 arthrometer is often used clinically to quantify anterior tibial displacement. Few data have been documented, however, about the relative reliability of KT-1000 measurements obtained by novice compared with experienced users.
  
  
  METHODS
  Two novice and two experienced KT-1000 users performed measurements on 29 knees of 25 patients after anterior cruciate ligament (ACL) reconstruction or with a diagnosis of ACL deficiency. Measurements were performed at 131 N. Interrater and intertrial reliability coefficients (interclass correlation coefficient; ICC) and the standard error of measurement were calculated for expert and novice raters.
  
  
  RESULTS
  The interrater ICC for novices was 0.65 and the interrate error was +/- 3.52 mm (90% confidence interval [CI]). The interrater ICC for experts was 0.79 and the interrater error was +/- 2.94 mm (90% CI).
  
  
  CONCLUSIONS
  These results suggest that experience in using the KT-1000 is related to the interrater error of measurements and that training is an important consideration when using the KT-1000 arthrometer.
authors: Wesley Woods Geriatric Hospital, Atlanta, Ga., USA.
authors: J
authors: J
authors: Berry
authors: K
authors: K
authors: Kramer
authors: J
authors: J
authors: Binkley
authors: G A
authors: GA
authors: Binkley
authors: P
authors: P
authors: Stratford
authors: S
authors: S
authors: Hunter
authors: K
authors: K
authors: Brown
mesh_terms: D000293:Adolescent; D000328:Adult; D016118:Anterior Cruciate Ligament / Q000601:surgery; D000070598:Anterior Cruciate Ligament Injuries; D001696:Biomechanical Phenomena; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000175:diagnosis* / Q000503:physiopathology; D007718:Knee Injuries / Q000503:physiopathology / Q000601:surgery; D007719:Knee Joint; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D012399:Rotation; D013977:Tibia / Q000503:physiopathology