A Pilot Study to Examine the Effect of a Powered Knee Orthosis on Crouch Gait in Cerebral Palsy
Hospital for Special Surgery, New York
Summary
Robotic exoskeletons are becoming increasingly accepted to provide upright mobility in individuals with neurological disorders. These devices can assist in overcoming gravitational forces and reduce energy consumption. Agilik is one such device intended for children with neurological disorders. However, Agilik is relatively new, and its efficacy in children with CP is unknown. Therefore, this study aims to assess the effectiveness of Agilik as an assistive device for children with CP and crouch gait. In this pilot study, ten children with CP, GMFCS level II, and crouch gait will walk with Agilik under the supervision of a physical therapist. Assessments of walking with AFO and Agilik will evaluate the efficacy of the device. The pilot study will assess if Agilik decreases crouch and improves gait characteristics in children with CP.
Description
Robotic knee orthosis (RKO) can assist with voluntary knee extension and potentially reduce crouch/flexed-knee gait, but the efficacy of this technology in children with CP is unknown. This study aims to assess the effectiveness of Agilik as an assistive device for children with CP. Ten children with CP, ages 8 to 17 years, and at GMFCS level II, will be recruited for this pilot study. Each child will participate in a total of four visits over four weeks duration. The first three visits will also include RKO device fitting and tuning, followed by RKO-assisted walking practice to help with devi…
Eligibility
- Age range
- 8–17 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: * Diagnosed with cerebral palsy at GMFCS level II * Exhibits crouch gait * Between 8 to 17 years of age * Hip flexion contracture less than 5 degrees * Knee flexion contracture less than 20 degrees when measured in prone with hips extended * Thigh-foot angle is between 10 degrees (internal) to 25 degrees (external) in prone * Can walk a minimum distance of 10 meters without stopping Exclusion Criteria: * Plantarflexion contracture, when measured in neutral foot alignment * No other neurological, musculoskeletal, or cardiorespiratory health conditions or injuries * The pr…
Interventions
- DeviceRKO-assisted walking in children with CP
The investigators will assess walking in each of the following conditions: shod (shoes or shoes + AFO) and RKO-assisted (shoes + RKO), to achieve the following: (1) Evaluate the effect of RKO, compared to shod upon endurance in children with CP at GMFCS level II, and (2) Evaluate the effect of RKO, compared to shod, upon temporal-spatial parameters, lower limb sagittal joint kinematics, and muscle EMG in children with CP at GMFCS level II.
Location
- Hospital for Special SurgeryNew York, New York