Spine
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Comparative Study
MRI signal changes of the pedicle as an indicator for early diagnosis of spondylolysis in children and adolescents: a clinical and biomechanical study.
Clinical review of pediatric patients with lumbar spondylolysis and biomechanical analysis using finite-element lumbar spine model. ⋯ The correlation between the high stresses in the pedicle and the corresponding HSC suggest that signal changes in MRI could be used as an indicator for early diagnosis of spondylolysis. The HSC of the pedicle provided useful information to diagnose early stage spondylolysis. Furthermore, the HSC may be a good indicator as to whether a bony union will result from conservative treatment.
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Comparative Study
A population-based analysis of healthcare utilization of persons with back disorders: results from the Canadian Community Health Survey 2000-2001.
A retrospective, population-based analysis. ⋯ With increasing disability as indicated by the presence of pain and functional limitations, and the presence of depressive symptoms, the higher the utilization of physician and nonphysician resources, with the exception of chiropractic care, which appears to be used by those with less severe symptoms. Lower socioeconomic status was associated with significantly lower receipt of services for almost all healthcare providers.
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Comparative Study
Auditory startle alters the response of human subjects exposed to a single whiplash-like perturbation.
Human volunteers were exposed to a single whiplash-like perturbation. ⋯ An acoustic startle alters the neck muscle and kinematic responses and may be as important as gender in the genesis of whiplash injury.
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Comparative Study
Work disability and costs caused by recurrence of low back pain: longer and more costly than in first episodes.
Retrospective analysis of workers' compensation (WC) claims data for nonspecific low back injuries (LBI) in a single jurisdiction. ⋯ Recurrences contributed disproportionately to the total burden of work-related nonspecific LBI, through both additional care seeking and work disability. Results imply that those who have recurrences may be an especially important target for secondary prevention efforts.
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Comparative Study
Kinematics of the cervical spine in lateral bending: in vivo three-dimensional analysis.
Kinematics of the cervical spine during lateral bending were investigated using a novel system of three-dimensional motion analysis. ⋯ We succeeded in identifying in vivo coupled motions of the cervical spine in lateral bending for the first time.