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Comparison of three lumbar orthoses using motion assessment during task performance
Martin H Krag1, James Fox MS, Larry D Haugh
1Vermont Back Research Center, Department of Orthopaedics & Rehabilitation, University of Vermont, Burlington 05405, USA. martin.krag@uvm.edu
Spine
|October 16, 2003
Summary
The Aspen and Boston lumbar orthoses effectively restrict motion after surgery, with Aspen offering superior comfort. Cybertech orthoses showed no significant difference compared to no brace.
Area of Science:
- Biomechanics
- Orthotics and Prosthetics
- Spinal Surgery Rehabilitation
Background:
- Previous studies on torso motion were limited.
- A novel strain-gauged device, the "Lordosimeter," enabled precise measurement.
- This study evaluated lumbar motion and comfort with different orthoses.
Purpose of the Study:
- To compare whole torso and lumbar motion during daily activities.
- To assess patient comfort with three different lumbar orthoses.
- To evaluate the effectiveness of orthoses post-lumbar surgical arthrodesis.
Main Methods:
- A randomized, full cross-over design with 12 subjects.
- The Lordosimeter device measured lumbar motion.
- Surface electromyography (EMG) assessed subject effort.
- Comfort was rated using a visual analog scale.
Main Results:
- Aspen and Boston orthoses significantly reduced lumbar and trunk motion compared to no orthosis.
- No significant differences in motion restriction were found between Aspen and Boston.
- Aspen orthoses were rated significantly more comfortable than Boston and Cybertech.
Conclusions:
- The Lordosimeter is a valuable tool for assessing lumbar motion with orthoses.
- Aspen and Boston orthoses provide comparable motion restriction.
- The Aspen orthosis offers the best combination of motion restriction and comfort.