Spine
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A cross-sectional population study of magnetic resonance imaging (MRI) changes. OBJECTIVE.: To examine the pattern and prevalence of lumbar spine MRI changes within a southern Chinese population and their relationship with back pain. ⋯ LDD is common, and its incidence increases with age. In a population setting, there is a significant association of LDD on MRI with back pain.
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Clinical Trial
Interdependence between disc space height, range of motion and clinical outcome in total lumbar disc replacement.
Clinical and radiologic assessment obtained from an ongoing prospective trial following total lumbar disc replacement (TDR) with ProDisc II. ⋯ A significant interdependence was observed between the parameters DSH, ROM and the clinical outcome following TDR. Whilst the DSH is restored, TDR leads to a significant decrease in postoperative ROM, particularly at the lumbosacral junction. Higher preoperative DSH and ROM revealed a beneficial effect on the postoperative segmental mobility. The subjective outcome evaluation indicates that TDR is a viable treatment option even in advanced stages of degenerative disc disease in the absence of other contraindications, in particular facet joint arthropathies.
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Prospective nonscoliotic cohort evaluation of the effects of various positions for obtaining standing lateral thoracolumbar radiographs. ⋯ Standing with the hands supported while flexing the shoulders 30 degrees during positioning for lateral spinopelvic radiographic acquisition resulted in an SVA and measures of sagittal plane curvature that were comparable with a functional standing position with arms at the side. This seems to be the best way to move the arms anterior to the spine with the least effect on overall sagittal balance.
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A prospective diagnostic clinical trial. ⋯ The ALDT is more reliable, reproducible, and straightforward, and less error-prone than the Cobb method for measurements of spinal curvature.
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A descriptive study of the association between Schmorl nodes (SNs) and gender, ethnic origin, and age in a normal skeletal population. ⋯ SNs are a common phenomenon in the normal adult populations with almost half of the individuals in our sample manifesting at least 1 vertebra with SN. Its demographic characteristics suggest that the phenomenon is not of occupational origin, promoting the notion of genetic background.