STUDY OF POSTURAL STABILITY IN SUBJECTS WITH MYELOPATHY USING A PORTABLE VIRTUAL REALITY BALANCE PROTOCOL.

NIH RePORTER · VA · I21 · · view on reporter.nih.gov ↗

Abstract

Veterans are at heightened risk of developing cervical spondylotic myelopathy (CSM) from rigors of military service. Diagnosis of CSM involves a set of clinical findings and is confirmed by imaging the spine. Gait impairment and disturbances of stance control are hallmarks of CSM and are a consequence of abnormalities in proprioception due to dorsal column tract damage of the spine. Currently, gait and balance deficits rely on clinical level assessments and judgement for detection. An objective measure of posturography has the benefit of: a) quantifying balance-related disability in CSM, b) facilitating structure-functional assessments in CSM, and c) quantifying the degree surgical interventions affect posturography and recovery of function in CSM. Objective and sensitive means for assessing balance and posturography exist, but are not routinely incorporated in diagnosis or functional tracking of progress after interventions such as surgery. A barrier may be accessibility of posturography and ease of assessments. The Virtual Environment TBI Screen (VETS) was devised using Army Rapid Innovation Development funding to objectively assess balance and posturography in a cost effective, but sensitive manner. VETS involves virtual environments and computerized posturography and is proving to be a sensitive system facilitating diagnosis, treatment, and mitigation of balance dysfunction associated with mTBI. Our working hypothesis is VETS testing will enhance clinical judgements regarding CSM. The SPiRE is designed to provide data critical to a more extensive program of research incorporating posturography into treatment and rehabilitation of CSM. First, a limited comparative study of standing balance will be conducted of 20 veterans being evaluated for cervical spine surgery to treat CSM and 20 otherwise healthy veterans. Second, posturography of the veterans undergoing surgery to treat CSM will be tracked during their scheduled follow up visits to determine the degree VETS scores are affected by surgery and to track recovery from CSM. Patients in the CSM group will be selected based on clinical criteria. Veterans in the control group will be recruited from the Syracuse Veterans Affairs Medical Center (SVAMC) and surrounding community. For VETS testing, the veteran will stand directly on a firm surface or foam pad placed on top of a Wii Balance Board (WBB). There are six conditions manipulating surface (firm or foam surface) and visual input (eyes open viewing a static scene, eyes closed, and eyes open viewing a dynamic visual scene). The primary measure is the center of pressure (COP) sway area. These 6 conditions allow for an assessment of generalized vs specific deficits in COP sway area considering proprioception, dependence of visual input and visuo- proprioceptive integration. AIM 1A: Determine whether and to what degree balance is altered in CSM. The degree of COP sway will be compared between CSM and controls in the six conditions comprisi...

Key facts

NIH application ID
9852894
Project number
5I21RX002882-02
Recipient
SYRACUSE VA MEDICAL CENTER
Principal Investigator
RICHARD J SERVATIUS
Activity code
I21
Funding institute
VA
Fiscal year
2020
Award amount
Award type
5
Project period
2019-02-01 → 2021-01-31