Inter-rater reliability of the GNRB® knee arthrometer.
BACKGROUND
In clinical settings, where arthrometers are mainly used by different clinicians, knowing the inter-rater reliability of the instrument is crucial in order for the results from different examiners to be accurately interpreted and limitations fully understood. The aim of this study was to evaluate the inter-rater reliability of the GNRB® knee arthrometer.


METHODS
Knee anterior laxity in both knees was tested in a group of young, uninjured subjects (N=27, 13 females) by two examiners. Knee anterior laxity was calculated at test forces of 134 N and 250 N with values presented for the unstandardised and standardised conditions (relative to patellar stabilisation force).


RESULTS
The ICCs ranged from 0.220 to 0.424.


CONCLUSIONS
The inter-rater reliability of the GNRB® knee arthrometer is low.
University of Ljubljana, Faculty of Health Sciences, Department of Physiotherapy, Zdravstvena pot 5, 1000 Ljubljana, Slovenia; Arthron, Institute for Joint and Sports Injuries, Slovenia. Electronic address: renata.vauhnik@zf.uni-lj.si.
Renata
R
Vauhnik
University of Ljubljana, Faculty of Health Sciences, Slovenia.
Matthew C
MC
Morrissey
University of Ljubljana, Medical Faculty, Institute for Biostatistics and Medical Informatics, Slovenia.
Maja Pohar
MP
Perme
University of Ljubljana, Faculty of Health Sciences, Slovenia.
France
F
Sevsek
University of Ljubljana, Faculty of Health Sciences, Biomechanics Laboratory, Slovenia.
Darja
D
Rugelj
D000328:Adult; D053587:Arthrometry, Articular / Q000295:instrumentation*; D004576:Electromyography; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000175:diagnosis*; D007719:Knee Joint / Q000502:physiology*; D008297:Male; D015203:Reproducibility of Results; D055815:Young Adult
Arthrometry; Force; Knee anterior laxity; Reliability