Spine
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Comparative Study
Biomechanical Comparison of Different Surgical Strategies for Skip-level Cervical Degenerative Disc Disease: A Finite Element Study.
We constructed finite element (FE) models of the cervical spine consisting of C2-C7 and predicted the biomechanical effects of different surgical procedures and instruments on adjacent segments, internal fixation systems, and the overall cervical spine through FE analysis. ⋯ Noncontiguous ACDF with zero profile can reduce the stress on adjacent intervertebral disks and endplates, resulting in a reduced risk of adjacent segment disease development. However, the high cortical bone stress caused by the Zero-P device may influence the risk of fractures.
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A prospective, comparative study on clinical, radiographic, and health-related quality of life (HRQoL) outcomes in adolescents with acute spondylolysis treated with a rigid thoracolumbar orthosis (Boston brace) or with a placebo (elastic lumbar support) with a 2-year follow-up time. ⋯ II.
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Observational Study
Natural History of IntraDiscal Vacuum Phenomenon and its role in Advanced Disc Degeneration.
Observational serial computed tomography (CT) analysis of the lumbar spine in a normal-aging population. ⋯ As disc degeneration advances, the associated IDVP persists in most cases, displaying a plateauing of severity over long periods, but rarely with progression to autofusion.
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Retrospective longitudinal study. ⋯ We found that smoking, high BMI, monthly drunkenness, chronic diseases, and low family SES in adolescence increased the likelihood of degenerative low back pain hospitalizations in adulthood. In addition, high BMI, smoking, and monthly drunkenness in adolescence increased the odds of spinal surgeries.
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Retrospective cohort study. ⋯ Our findings suggest that ALIF with posterior instrumentation performed superiorly in radiographic outcomes and patient-reported outcomes compared with anteriorly placed TLIFs. Anteriorly placed TLIF cages may not achieve the same results as those of ALIF cages.