Inter-rater and intra-rater reliability of finger goniometry measured from screenshots taken via video consultation.

Abstract

The purpose of this study was to assess the intra- and inter-rater reliability of using screenshots and handheld manual goniometers to assess range of finger movements during video consultations. Twenty-seven hand therapists measured finger joint angles from four different screenshots using two different goniometers. Results were compared within and between participants using the intraclass correlation coefficient (ICC). The ICC grading for both intra- and inter-rater reliability was moderate to excellent for all joints and both goniometers. Clinicians can measure finger joint angles from a screenshot with good reliability. The protocol used in this study can be used in remote video consultations as a no-cost substitute for in-person goniometry.Level of evidence: II.