Spine
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Comparative Study
Biomechanical comparison of anterolateral plate, lateral plate, and pedicle screws-rods for enhancing anterolateral lumbar interbody cage stabilization.
A repeated measures in vitro flexibility experiment was performed in calf spines. ⋯ Anterolateral or lateral lumbar plating increases stability significantly compared to stand-alone interbody cage fixation. These findings support anterolateral or lateral plate fixation as a potential clinical alternative to pedicle screws-rods in this role and may obviate the need for combined anterior and posterior approaches when spinal instability exists.
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A dissection-based study of 18 embalmed cadavers (7 male, 11 female), mean age 84 (+/-8.4) years. ⋯ Hofmann ligaments are present at most levels between C7 and L5; although most ligaments were limited to a single vertebral segment, some were observed to cross several segments.
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Retrospective review. ⋯ Pediatric sacral fractures are rare (0.16% of pediatric trauma). As is the case in adults, most fractures are not associated with neurologic injury. Diagnosing pediatric sacral fractures requires high clinical suspicion and thorough radiographic evaluation. Correlation of neurologic injury with certain fracture types may be possible, but will require larger studies to be confirmed.
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Prospective cohort study. ⋯ Low back pain was a dynamic process with high rates for incidence, recurrence, and recovery. General health and work-related physical and psychosocial factors influenced both the incidence and recurrence of low back pain. The incidence and recurrence of low back pain depend strongly on the recall period of low back pain and the time-window of investigation.