Intra-rater reliability of the knee arthrometer GNRB® for measuring knee anterior laxity in healthy, active subjects

Magdič, Miha (author), Gošnak Dahmane, Raja (author), Vauhnik, Renata (author)

Background: Arthrometers are used to assess knee anterior laxity and to evaluate the integrity of the anterior cruciate ligament. Assessment of knee anterior laxity is crucial part of the clinical examination. The aim of this study was to investigate the intra-rater reliability of the GNRB® in healthy subjects. Methods: In the study participated 97 subjects and two measurements using a GNRB® arthrometer were performed. Males were tested two times one week a part. Females were tested two times within 24 h. Measurements were performed at the following forces 134 N, 134 N, 150 N, 200 N, and 200 N. To evaluate the reliability of GNRB® measurements an intraclass correlation coefficient was calculated. Results: Intra-rater reliability of the GNRB® measurements is good for 134 N on the left knee (ICC = 0.848) and the right knee (ICC = 0.788) and for 200 N on the left knee (ICC = 0.805) and the right knee (ICC = 0.756). Conclusion: The GNRB® knee arthrometer has good intra-reliability for measurements at the 134 N and 200 N forces. Reliability can be increased with the standardize position of the subject, the stabilization of the patella and standardize measurement protocol.

• Language: English
• Keywords: GNRB® arthrometer, reliability, knee anterior laxity, anterior cruciate ligament, knee injury
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: ZF - Faculty of Health Sciences
• Publication status: Published
• Publication version: Version of Record
• Year: 2023
• Number of pages: Str. 7-10
• Numbering: Vol. 39
• PID: 20.500.12556/RUL-145108
• UDC: 615.8:617.3
• ISSN on article: 0972-978X
• DOI: 10.1016/j.jor.2023.03.016
• COBISS.SI-ID: 147970307
• Publication date in RUL: 06.04.2023

Record is a part of a journal

• Title: Journal of orthopaedics (online)
• Shortened title: J. orthop.
• Publisher: Elsevier, Professor P K Surendran Memorial Education Foundation
• ISSN: 0972-978X
• COBISS.SI-ID: 519702297

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: GNRB® artrometer, zanesljivost, sprednja ohlapnost kolena, sprednja križna vez, poškodba kolena

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P3-0388
• Name: Mehanizmi varovanja zdravja