Evidence for the correction of Dropped foot using the ODFS Pace
The Odstock Dropped Foot Stimulator (ODFS) Pace was developed at Salisbury District Hospital under funding from the Department of Health.
The Device was evaluated for dropped foot in chronic stroke in a randomised controlled trial (RCT)1, 2. Additional case series data was collected from patients with MS and incomplete spinal cord injury3 . The trial demonstrated:
- Increased walking speed when the ODFS Pace is used
- Reduced walking effort
- Reduced spasticity
- Increased quality of life
- Significant cost utility gain (QALY analysis)
The clinical service modal and evidence for the ODFS Pace were presented to the NHS who subsequently recommended the treatment for patients with dropped foot due to upper motor neurone lesions4, 5 .
Audit of the clinical service confirms the results of the RCT and demonstrates a training effect from using the ODFS and a high level of treatment adherence (86% at one year)6, 7, 8, 9. The main reasons patients choose to continue to use the ODFS are:10
- Reduced effort of walking
- Increased confidence when walking
- Reduced trips and falls
An RCT of the use of the device with secondary progressive MS demonstrated increased walking speed with the device, 72% reduction in falls and a significant positive impact on activities of daily living in comparison to a group that received physiotherapy11, 12.
An audit of 186 users of the ODFS Pace who had MS showed that FES improves functional ambulation category15.
The ODFS Pace has been demonstrated to be a clinically and cost effective long term assistive device with an average use of 5 years and to extend mobility in MS by 4 years17,18,19.
Studies using the ODFS Pace with people who exhibited freezing of gait due to Parkinson’s disease indicated that the device may have a significant training effect, reducing bradikinesia13, 20.
Use of the ODFS was recommended in the Royal College of Physicians Clinical Guidelines on Stroke14.
In excess of 7000 patients have received treatment for dropped foot using FES in Salisbury since the service began. Over 20,000 have received treatment elsewhere in the UK.
FES is recommended in the NICE guidelines IPG27816.