Journal of spinal disorders & techniques
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J Spinal Disord Tech · Jun 2012
Posterior facet load changes in adjacent segments due to moderate and severe degeneration in C5-C6 disc: a poroelastic C3-T1 finite element model study.
Biomechanics of normal vertebral segments adjacent to a degenerated segment in the cervical spine. ⋯ Higher changes in facet loads along the posterior spinal column may contribute to altered biomechanics in neighboring segments. Future biomechanical experiments are required to develop a more clear understanding of the posterior facet joints response in neighboring segments because of degeneration in a cervical disc.
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J Spinal Disord Tech · Jun 2012
Prophylactic inferior vena cava filters prevent pulmonary embolisms in high-risk patients undergoing major spinal surgery.
Clinical case series. ⋯ These findings show that the decreased rate of PE observed in this and other series is likely because of the use of IVC filters, rather than sampling bias inherent when studying a relatively rare problem. The safety of IVC filters in this population is also confirmed. The observed rate of clinical PE is consistent with other published series. Emboli intercepted by filters may more accurately estimate clinically significant emboli prevented. Therefore, cavograms may prove to be a valuable method of assessing the efficacy of these devices in future studies.
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J Spinal Disord Tech · Jun 2012
Impact of multimodal intraoperative monitoring during surgery for spine deformity and potential risk factors for neurological monitoring changes.
Retrospective review. ⋯ Multimodal intraoperative monitoring provides higher sensitivity for monitoring during spine deformity surgery and can predict events of neurological injury. The detection of NMCs and adjustment of surgical strategy may prevent irreversible neurological deficits. The possible risk factors for NMCs during spine deformity surgery include an osteotomy procedure, kyphosis correction, and preoperative Cobb angle more than 90 degrees.
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J Spinal Disord Tech · May 2012
Clinical TrialClinical evaluation of a new kyphoplasty technique with directed cement flow.
Prospective, single-center 2-year study. ⋯ Directed cement flow allows cement to fill the anterior vertebral body, stabilizing fractures and supporting biomechanical loading. Control of cement flow may help minimize the risk of posterior leakage into the basivertebral vein or spinal canal.
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J Spinal Disord Tech · May 2012
Case ReportsImpact of prone surgical positioning on the scoliotic spine.
To study the impact of patient-specific prone positioning on the sagittal and coronal curves of scoliotic spines, including the impact of various patient and surgical frame factors. ⋯ Prone positioning results in a reduction of all spinal segmental curves which is dependent on a number of patient and surgical frame factors.