Objective
To examine postural instability in children acutely following concussion, using the Wii Balance Board. We hypothesized that children with traumatic brain injury would have significantly worse balance relative to children without brain injury.
Design
Prospective case-control pilot study
Setting
Emergency department of a tertiary urban pediatric hospital
Participants
Cases were a convenience sample aged 11 to 16 years old who presented within six hours of sustaining concussion. Two controls, matched on gender, height, and age, were enrolled for each case that completed study procedures. Controls were children who presented for a minor complaint that was unlikely to affect balance.
Interventions
Not applicable
Main Outcome Measure
The participant’s postural sway, expressed as the displacement in centimeters of the center of pressure during a timed balance task. Balance testing was performed using four stances (single or double limb, eyes open or closed).
Results
Three of the seventeen (17.6%) cases were too dizzy to complete testing. One stance, double limbs eyes open, was significantly higher in cases vs. controls (85.6 vs 64.3 centimeters, p=0.04).
Conclusions
A simple test on the Wii Balance Board consisting of a two-legged standing balance task with eyes open discriminated children with concussion from non-injured controls. The low cost and feasibility of this device make it a potentially viable tool for assessing postural stability in children with concussion for both longitudinal research studies and clinical care.