Spine
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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.
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Validation of a translated, culturally adapted questionnaire. ⋯ The Spanish version of the FABQ has good comprehensibility, internal consistency, and reliability. It cannot be analyzed parametrically, but only nonparametrically. The total FABQ is at least as valid as its subscales and simpler to score, making it more suitable for routine clinical use.