The Long-term Effects of an Implantable Drop Foot Stimulator on Gait in Hemiparetic Patients
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Medical University of Vienna
- Enrollment
- 10
- Primary Endpoint
- kinematic gait parameters
Study Overview
Brief Summary
The aim of this study is to investigate the effects of the implantable drop foot stimulator "ActiGait" (Ottobock Health Care, Duderstadt, Germany) on gait in hemiparetic patients. While several studies investigated the effects of implanted systems on walking speed and gait endurance, only a few studies have focused on the system's impact on kinematics and long-term outcomes. Therefore, our aim was to further investigate the effects of the implanted system ActiGait on gait kinematics and spatiotemporal parameters with a 1-year follow-up period.
Detailed Description
Patients with a neurologic condition leading to drop foot during swing phase in gait are treated by the implentation of the AcitGait system (which has a CE-certificate in Europe).
The aim of this study is to investigate the effect of the device on gait with a follow-up period of one year. Patients are assessed before implantation and at one-year follow up. At baseline, they are asked to walk without any assistive device, as well as with surface electrical stimulation of the peroneal nerve. At follow-up, they are asked to walk with the ActiGait system switched off and switched on.
Outcome assessments include a 10m-walking test and gait analysis with a VICON 3D-camera system. This allows to extract spatio-temporal parameters (as steps per minute, step length,...) as well as kinematic data (e.g. joint ankles during the gait cycle). All outcome data is analyzed using statistical tests.
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Treatment
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to — (Adult, Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •drop foot after stroke, brain haemorrhage or multiple sclerosis
- •a minimum of six months after the acute infarction/onset of the disease
- •passive extension of the ankle to at least at neutral position
- •no sufficient active ankle extension
- •free walking without any aid for at least 20 meters in less than 2 minutes
- •a walking speed of ≤ 1,2m/sec (measured with 10 meter walking test)
- •use of surface electrical stimulation for at least three months
- •be able to stand freely
Exclusion Criteria
- •damage to the peripheral nervous system
- •adiposity
- •substance abuse
- •no cognitive ability to follow the study instructions
- •pregnancy
- •use of other implanted devices
- •instable ankle joint or fixed contracture
Arms & Interventions
ActiGait
Patients who get the ActiGait implant
Intervention: ActiGait (Device)
Outcomes
Primary Outcomes
kinematic gait parameters
Time Frame: 1 year
Kinematic gait parameters are recorded and analysed using a 3D VICON infra-red camera system.
Secondary Outcomes
- spatio-temporal parameters(1 year)
- Visual Analogue Scale for Health(1 year)
- 10-m-walking test(1 year)
Investigators
Agnes Sturma
Physitherapist, Researcher
Medical University of Vienna