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A reliable and accurate method for measuring orthosis wearing time
Robert Havey1, Thomas Gavin, Avinash Patwardhan
1Department of Orthopaedic Surgery and Rehabilitation, Loyola University Medical Center, Maywood, Illinois 60153, USA.
Spine
|January 24, 2002
Summary
A new compliance monitor accurately measures spinal orthosis wearing time. This device offers a reliable method for tracking orthotic treatment adherence in patients with spine disorders.
Area of Science:
- Biomedical Engineering
- Orthotics and Prosthetics
- Medical Device Development
Background:
- Orthosis wearing time is critical for effective treatment of spine disorders.
- Current methods for measuring orthosis adherence lack objectivity and reliability.
- A need exists for an accurate device to monitor patient compliance.
Purpose of the Study:
- To develop a novel device for measuring spinal orthosis wearing time.
- To evaluate the accuracy and reliability of this compliance monitoring device.
Main Methods:
- A compliance monitor with pressure switches and a data logger was embedded in thoracolumbosacral orthoses.
- Orthosis use was determined by switch activation; data was compared against manual diaries.
- Laboratory climate tests and volunteer subject tests were conducted to validate the device.
Main Results:
- Linear regression analysis demonstrated high correlation between the monitor and diaries.
- Climate chamber tests showed excellent agreement (R2 = 0.998, slope = 1.003).
- Volunteer subject tests also showed excellent agreement (R2 = 0.998, slope = 0.998).
Conclusions:
- The developed compliance monitor accurately quantifies orthosis wearing time intervals.
- The device provides a reliable and objective method for assessing patient adherence.
- This technology can improve the management of spine disorders through better treatment monitoring.