Validation of Teleconference-based Goniometry for Measuring Elbow Joint Range of Motion

Abstract

Background  Range of motion (ROM) is a critical component of a physician's evaluation for many consultations. The purpose of this study was to evaluate if teleconference goniometry could be as accurate as clinical goniometry. Methods  Forty-eight volunteers participated in the study. There was a sample size of 52 elbows. Each measurement was recorded consecutively in person, through teleconference, and still-shot photography by two researchers trained in goniometry. Measurements of maximum elbow flexion and extension were taken and recorded. Results  Teleconference goniometry had a high agreement with clinical goniometry (Pearson coefficient: flexion: 0.93, Extension: 0.87). Limits of agreement found from the Bland-Altman test were 7⁰ and -3⁰ for flexion and 10.4⁰ and -7.4⁰ for extension. A t-test revealed a P-value of less than 0.001 between teleconference and clinical measurements, proving the data are significant. Conclusions ROM measurements through a teleconferencing medium are comparable to clinical ROM measurements. This would allow for interactive elbow ROM assessment with the orthopedist without having to incorporate travel time and expenses.