Spine
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Prospective analysis of preoperative and postoperative radiological data. ⋯ After classic Hirabayashi open-door laminoplasty, opened laminae showed reclosure at 6 months, with approximately 10% decrease in AP diameter and opening angle. Postoperative lamina closure was associated with recurrent spinal cord compression, suggesting the need for other augmenting techniques that keep the laminae opened.
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One-year prospective study of 141 acute whiplash patients (WLP) and 40 acute ankle-injured controls. ⋯ The Risk Assessment score is suggested as a valuable tool for grading WLP early after injury. It has reasonable screening power for encountering work disability and reflects the biopsychosocial nature of whiplash injuries.
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Retrospective subgroup analysis of prospectively collected data according to treatment received. ⋯ Patients with SS with fewer than 12 months of symptoms experienced significantly better outcomes with surgical and nonsurgical treatment relative to those with symptom duration greater than 12 months. There was no difference in the outcome of patients with degenerative spondylolisthesis according to symptom duration.
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An anatomic study of anterior cervical dissection of 11 embalmed cadavers and measurement of structures relative to cervical spine. ⋯ On the basis this study, spine surgeons can have enhanced knowledge of high anterior cervical anatomy. The neurovascular structures in this study did not demonstrate side-to-side anatomic variation; therefore, patient pathology and surgeon preference should dictate the operative side.
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Anatomic study performed on 13 cadaveric specimens focused on muscles of the suboccipital triangle, specifically, the rectus capitis posterior major (RCPma). ⋯ A connection was found to exist between the RCPma and the cervical dura mater. Various clinical manifestations may be linked to this anatomical relationship.