Spine
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Case Reports
Total en bloc spondylectomy. A new surgical technique for primary malignant vertebral tumors.
The study of seven patients with primary malignant or benign aggressive tumors who underwent a new aggressive surgical technique termed "total en bloc spondylectomy" is reported. ⋯ The advantages of total en bloc spondylectomy include resection of the involved vertebra(e) in two major blocs, rather than in a piecemeal pattern, and completion of the procedure during one surgical session posteriorly. The "total en bloc spondylectomy" offers one of the most aggressive modes of therapy for primary spinal malignancy.
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This is a retrospective study analyzing 76 patients treated by decompression, pedicle screw instrumentation, and fusion for spondylolytic spondyiolisthesis with symptomatic spinal stenosis. ⋯ The addition of posterior lumbar interbody fusion to posterolateral fusion after a complete decompression and pedicle screw fixation is a recommended procedure for the treatment of spondylolytic spondylolishesis with spinal stenosis.
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A direct method for three-dimensional in vivo spine kinematic studies was developed and used to measure segmental motion patterns in healthy subjects. ⋯ This new method offers dynamic recording capabilities and a measurement error comparable with stereo radiographic methods. Repetitive ranging experiments are highly reproducible. The range of motion for axial rotation seems overestimated in previous cadaveric studies. Coupling patterns show large variations between individuals.
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A prospective study with independent clinical and radiologic review. ⋯ Most cervical disc herniations regress with time and without the need for surgical resection. Thus, surgical intervention can be avoided with adequate pain control, allowing the herniation time to regress.