Relationship between white matter fiber damage and revised version of the ability for basic movement scale in patients with stroke: a diffusion tensor tract-based spatial statistic study.
Makoto Tamari, Shunta Umeki, Junji Goto and 1 others
PMID 29950769WHAT IT FOUND
In 12 stroke patients, those grouped by higher basic movement scores had higher white matter tract signals in several left hemisphere tracts.
The corticospinal tract did not differ between groups.
Key findings
01The ABMS II good group had mean ABMS II scores of 29.2 ± 1.6, and the poor group had mean ABMS II scores of 12.6 ± 2.4.
02The ABMS II good group had significantly higher fractional anisotropy values in the anterior thalamic radiation, superior longitudinal fasciculus, inferior occipitofrontal fasciculus, and uncinate fasciculus of the lesion hemisphere than the poor group.
03Fractional anisotropy in the corticospinal tract was not significantly different between the ABMS II good and poor groups.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study included only 12 patients and the authors called it a pilot study. All patients had left hemisphere lesions and were right-handed, so the findings may not apply to other lesion sides or handedness. The good and poor groups were unequal in size, with five and seven patients respectively. Time from stroke onset to MRI differed between groups, with 2.8 ± 1.0 days in the good group and 4.7 ± 4.7 days in the poor group. The study did not test a treatment or report later recovery outcomes.
Declared interests
The authors declared no conflict of interest.
The easy way to misread this
Do not conclude that corticospinal tract damage explains the ABMS II score differences. The corticospinal tract did not differ between the good and poor groups, and this was a pilot study of 12 patients.