Intra-rater and inter-rater reliability of robotic arthrometer DYNEELAX®

Mihalinec, Katja (author), Martinez-Cepa, Carmen B. (author), Zuil-Escobar, Juan C. (author), Kejžar, Nataša (author), Vauhnik, Renata (author)

Purpose The purpose of our study was to test the intra-rater and inter-rater reliability of the DYNEELAX® arthrometer in healthy subjects. Since rotational laxity will be measured for the first time in humans, indications for normative values will also be presented. Methods Knee anterior laxity and rotational laxity using a DYNEELAX® arthrometer were assessed in 73 subjects (39 females and 34 males). An intraclass correlation coefficient was calculated to evaluate the intra-rater and inter-rater reliability of the DYNEELAX®. Results An intraclass correlation coefficient for intra-rater reliability ranges from 0.631 (95% confidence interval; [CI]: 0.47–0.75) to 0.699 (95% CI: 0.56–0.80) and from 0.916 (95% CI: 0.87–0.95) to 0.94 (95% CI: 0.91–0.96) for anterior knee laxity and rotational knee laxity, respectively. An intraclass correlation coefficient for inter-rater reliability ranges from 0.578 (95% CI: 0.40–0.71) to 0.646 (95% CI: 0.44–0.78) and from 0.822 (95% CI: 0.57–0.91) to 0.933 (95% CI: 0.89–0.96) for anterior knee laxity and rotational knee laxity, respectively. Conclusions The DYNEELAX® arthrometer has good to excellent intra-rater and inter-rater reliability for rotational knee laxity and moderate intra-rater reliability for anterior knee laxity in healthy subjects. Future studies should investigate the clinical significance of anterior and rotational laxity measured with the DYNEELAX® arthrometer in patients with knee pathology, as both laxities are critical for assessing the integrity of the intra-articular structures of the knee in clinical practice.

• Language: English
• Keywords: anterior laxity, arthrometry, rotational laxity, reliability
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: ZF - Faculty of Health Sciences; MF - Faculty of Medicine
• Publication status: Published
• Publication version: Version of Record
• Publication date: 01.10.2024
• Year: 2024
• Number of pages: 9 str.
• Numbering: Vol. 11, iss.4, art. no. e70026
• PID: 20.500.12556/RUL-163121
• UDC: 615.82/.84:616.728.3
• ISSN on article: 2197-1153
• DOI: 10.1002/jeo2.70026
• COBISS.SI-ID: 209810179
• Publication date in RUL: 02.10.2024

Record is a part of a journal

• Title: Journal of experimental orthopaedics
• Shortened title: J. exp. orthop.
• Publisher: Springer
• ISSN: 2197-1153
• COBISS.SI-ID: 520470809

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.

Projects

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: P3-0388-2022
• Name: Mehanizmi varovanja zdravja

• Funder: ARIS - Slovenian Research and Innovation Agency
• Project number: P3-0154-2022
• Name: Metodologija za analizo podatkov v medicini