Article

Gait impairment is one of the primary symptoms of cervical
spondylotic myelopathy (CSM). Detailed assessment is possible using
three-dimensional gait analysis (3DGA), however the reliability of 3DGA for this
population has not been established. The aim of this study was to evaluate the
test-retest reliability of temporal-spatial, kinematic and kinetic parameters in
a CSM population.
METHODS: Twelve patients with CSM (mean age 54 years) were
consecutively recruited from a neurosurgery clinic. 3DGA was conducted on 2
separate days, less than 1 week apart, using the VICON((R)) 250 Motion Analysis.
The average of 10 gait cycles was analysed. Reliability was assessed using the
one-way random intraclass correlation coefficient (ICC), the standard error of
measurement (SEM), and Bland-Altman limits of agreement (LOA). RESULTS:
Temporal-spatial parameters showed excellent reliability, with ICCs above 0.9 for
speed, cadence, stride length, double support time, and step width. ICCs for
kinematic parameters ranged from acceptable (0.62, peak knee flexion in stance)
to excellent (0.95, total hip sagittal plane motion). The SEM for all kinematic
parameters was below 4 degrees , with the exception of peak hip internal rotation
(5.8 degrees ). Peak values were less reliable than the total range of motion in
a plane. The majority of kinetic parameters showed excellent reliability
(ICCs>0.85), with the exception of peak medio-lateral ground reaction force (ICC
0.12). CONCLUSIONS: This information will enhance the interpretation of gait
scores for CSM patients, as an estimate of the change required to exceed
measurement error is now available.
CI - Copyright (c) 2010 Elsevier B.V. All rights reserved.

Langue : ANGLAIS