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Walking with a hybrid orthosis system
K A Ferguson1, G Polando, R Kobetic
1Motion Study Laboratory, Cleveland V.A. Medical Center, Cleveland, Ohio 44106-1702, USA.
Spinal Cord
|December 1, 1999
Summary
The hybrid orthosis system (HOS) enabled safe, independent walking for a paraplegic subject. This functional electrical stimulation (FES) enhanced mobility, reducing perceived exertion compared to braces alone.
Area of Science:
- Rehabilitation Engineering
- Biomedical Engineering
- Orthotics and Prosthetics
Background:
- Assessing the efficacy of advanced orthotic systems is crucial for individuals with severe mobility impairments.
- Traditional orthoses often have limitations in providing functional ambulation for those with significant orthopedic abnormalities.
Observation:
- A case study involved a subject with complete T7 paraplegia and a substantial leg length discrepancy.
- The subject utilized a hybrid orthosis system (HOS) incorporating a reciprocal gait orthosis (RGO) and functional electrical stimulation (FES).
- The HOS was evaluated for sit-to-stand and walking capabilities in home and community settings.
Findings:
- The HOS facilitated safe, independent ambulation with a walker, meeting criteria for community use.
- Compared to the RGO alone, the HOS with FES allowed for greater walking distances and reduced perceived exertion.
- The system demonstrated safety and efficacy in real-world community environments.
Implications:
- The hybrid orthosis system (HOS) presents a viable clinical solution for individuals with complex orthopedic conditions.
- This technology may offer improved functional independence for patients who might not benefit from conventional braces or FES alone.
- Further research into HOS could expand treatment options for paraplegia and related mobility challenges.