Spine
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Retrospective radiographic review. ⋯ Although disc height, translational motion, and angular variation are significantly affected at the level of a disc herniation, no significant changes are apparent in adjacent segments. Our results indicate that herniated discs have no effect on ROM at adjacent levels regardless of the degree of disc degeneration or the size of disc herniation, suggesting that the natural progression of disc degeneration and adjacent segment disease may be separate, unrelated processes within the cervical spine.
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Retrospective case series. ⋯ Due to high incidence of SCMs, all patients with CSDs must be evaluated with MRI, before surgery. Neurosurgical interventions are recommended even for neurologically asymptomatic Type I SCM before spinal deformity surgery; however, patients with Type II SCM can be treated safely without a need of neurosurgical intervention.
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A retrospective evaluation. ⋯ Adult spinal deformity patients with preoperative hypolordosis who were positioned prone during reconstructive surgery had an enhanced lumbar lordosis via positioning alone compared with theirpreoperative upright radiographs. Conversely, those with substantial preoperative lordosis remained unchanged with intraoperative prone positioning. This knowledge will help in the surgical planning of adult spinal deformity reconstructive surgery to optimize sagittal alignment and balance.