Spine
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Comparative Study
Responsiveness of the Bournemouth questionnaire in determining minimal clinically important change in subgroups of low back pain patients.
Prospective single cohort. ⋯ The BQ can distinguish between improved and nonimproved LBP patients but the amount of change needed to achieve this is lower in more chronic patients and in individuals with less severe presentation at baseline.
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Comparative Study
Biomechanical comparison of kyphoplasty versus a titanium mesh implant with cement for stabilization of vertebral compression fractures.
In vitro biomechanical investigation. ⋯ The titanium implant was biomechanically equivalent to the kyphoplasty repair while necessitating less cement and providing greater height maintenance in vitro. Improvements in pain and function could not be specifically addressed in this in vitro study and should be evaluated in a clinical case series.
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An in vitro laboratory study. ⋯ For BMD value more than 0.70 g/cm, bicortical sacral pedicle screw fixation could obtain sufficient anchoring strength comparable with the PMMA augmented technique. When BMD value is within 0.6 to 0.7 g/cm, the PMMA augmented technique would be more beneficial in improving the fixation strength than the bicortical fixation. For BMD values less than 0.6 g/cm, early screw loosening may occur in both bicortical and PMMA augmented fixations.
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Concurrent validity between postural indices obtained from digital photographs (two-dimensional [2D]), surface topography imaging (three-dimensional [3D]), and radiographs. ⋯ This tool will facilitate clinical practice by monitoring trunk posture among persons with IS. Further, it may contribute to a reduction in the use of radiographs to monitor scoliosis progression.