1119 - Evaluation of Zeno Walkway- a 2D gait analysis tool in the pediatric population

Gait abnormality and utility of Zeno Walkway as a rehabilitation outcome tool

 

Case Description: Zeno Walkway data was collected in Shriner’s Hospital Gait Analysis Lab. One data collection involved patients walking across the mat and back to starting point. Data was analyzed for three patients before and after a therapeutic intervention. The interventions were the following: botox injection for quadriplegic cerebral palsy, surgery for bilateral flat foot, and use of ankle-foot orthosis (AFO) in right foot drop from Brown Sequard syndrome. 
Case #1 patient post-botox showed 42% increase in velocity and 42% decrease in stride width. Case #2 patient post-surgery had a 62% increase in velocity, 53% increase in step and stride length. Case #3 patient with right AFO had a 125% increase in velocity and 200% increase in stride length. The right foot single support time and left foot swing phase time both increased by 53%

Discussions: In each case there was clinical uncertainty and disagreement about whether treatment resulted in improvement or not. The 2D gait assessment provided unbiased data driven evaluation of both pre and post treatment status of gait, and allowed for understanding of size and type of treatment impact. Historically, 2D gait analysis is an underutilized tool in pediatric rehabilitation. Other methods to assess gait range from clinical tests like the 6-minute walk test to a complete 3D gait analysis. However, clinical tests only provide a single gait measure, and 3D gait analysis is expensive and time consuming. In comparison, the Zeno Walkway is quick and provides spatiotemporal data that can guide clinical decision making within a rehabilitation setting.

Conclusions:

The Zeno Walkway is a quick and easy to use tool that provides dynamic and objective measures of gait. It provides a method for gait surveillance and assessing efficacy of various therapeutic interventions.