Inter-rater reliability of real-time ultrasound to measure acromiohumeral distance

Mackenzie, TA; Bdaiwi, AH; Herrington, LC; Cools, A

Abstract

Background

Real-time ultrasound (RTUS) has been suggested as a reliable measure of acromiohumeral distance. However, to date, no vigorous assessment and reporting of inter-rater reliability of this method has been performed with the shoulder in a neutral position or with active and passive arm abduction.

Objective

To assess intrasession inter-rater reliability of using RTUS to measure acromiohumeral distance with the shoulder in a neutral position and with 60° active and passive abduction.

Study Design

Inter-rater intrasession reliability of repeated measures.

Setting

Human performance laboratory.

Participants

Twenty persons (12 male and 8 female) with an average age of 29.86 years (standard deviation, 7.8).

Method

In an inter-rater, intrasession study, RTUS was used to measure the acromiohumeral distance with the shoulder in a neutral position and with 60° of both active and passive abduction.

Main Outcome Measure

Acromiohumeral distance.

Results

Intraclass correlation coefficient (ICC)2.1 scores ranged between 0.65-0.88 (standard error of the mean = 0.81-1.2 mm and minimal detectable differences with 95% confidence = 2.2-2.3 mm) for inter-rater intrasession reliability.

Conclusion

RTUS was found to have fair to good inter-rater reliability as a tool to measure acromiohumeral distance with the shoulder in a neutral position and with 60° of both active and passive arm abduction.

Citation

Mackenzie, T., Bdaiwi, A., Herrington, L., & Cools, A. (2015). Inter-rater reliability of real-time ultrasound to measure acromiohumeral distance. PM&R, 8(7), 629-634. https://doi.org/10.1016/j.pmrj.2015.11.004

• Journal Article Type: Article
• Acceptance Date: Nov 11, 2015
• Online Publication Date: Nov 19, 2015
• Publication Date: Nov 19, 2015
• Deposit Date: Nov 11, 2016
• Journal: PM&R
• Print ISSN: 1934-1482
• Publisher: Elsevier
• Volume: 8
• Issue: 7
• Pages: 629-634
• DOI: https://doi.org/10.1016/j.pmrj.2015.11.004
• Publisher URL: http://dx.doi.org/10.1016/j.pmrj.2015.11.004