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Smartphone Applications for Assessing Ankle Range of Motion in Clinical Practice
Kevin Y Wang1, S Hanif Hussaini1, Robert D Teasdall1
1Department of Orthopaedic Surgery, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA.
Foot & Ankle Orthopaedics
|January 31, 2022
Summary
Smartphone apps offer a reliable and convenient method for measuring ankle range of motion (ROM), correlating well with universal goniometers. Patients reported high comfort levels with using these mobile tools for ankle ROM assessment.
Area of Science:
- Orthopedics
- Sports Medicine
- Rehabilitation Technology
Background:
- Accurate ankle range of motion (ROM) measurement is crucial for recovery monitoring and impairment ratings.
- Smartphone applications have emerged as potential tools to replace traditional goniometers.
- This study evaluated the clinical utility of smartphone apps for ankle ROM assessment.
Purpose of the Study:
- To assess the correlation between smartphone app-based ankle ROM measurements and universal goniometer (UG) measurements.
- To determine the reliability and usability of smartphone apps for measuring ankle ROM in clinical practice.
- To compare different smartphone apps for ankle ROM measurement accuracy.
Main Methods:
- Three raters measured ankle plantarflexion and dorsiflexion ROM in 24 patients using four devices: Goniometer app (Gonio), Clinometer app (Clino), DrGoniometer app (DrG), and a universal goniometer (UG).
- Patients completed usability surveys for the smartphone applications.
- Statistical analysis included Lin's concordance correlation coefficient and a 2-way mixed model for reliability.
Main Results:
- Smartphone apps demonstrated moderate to strong correlation with UG measurements (Lin's rLC ranging from 0.908 to 0.935).
- Good to excellent interrater reliability was found for all tested apps (ICC values ranging from 0.777 to 0.912).
- The majority of patients expressed high comfort using smartphone apps for ankle ROM measurement.
Conclusions:
- Smartphone apps provide a convenient and reliable alternative for measuring ankle ROM compared to traditional universal goniometers.
- These apps can be utilized by physicians in clinical settings for accurate ROM assessment.
- Potential applications include remote patient monitoring and at-home self-measurement of ankle ROM.
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