Journal of spinal disorders & techniques
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J Spinal Disord Tech · Jun 2010
Randomized Controlled Trial Comparative StudyMicrodecompressive laminatomy with a 5-year follow-up period for severe lumbar spinal stenosis.
The 2 groups of patients with severe lumbar spinal stenosis were prospectively compared as a case control study. ⋯ Compared with classic approaches, bilateral MDL provides adequate and safe decompression in lumbar spinal stenosis. It significantly reduces clinical symptoms and disability. However, TL shows higher perioperative complications and postoperative instability. To the best of our knowledge, this is the first study to define a bilateral MDL approach to treat the stenotic lumbar spine without a herniated disc.
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J Spinal Disord Tech · Jun 2010
Radiostereometric analysis of postoperative motion after application of dynesys dynamic posterior stabilization system for treatment of degenerative spondylolisthesis.
Prospective case series ⋯ The Dynesys dynamic instrumentation system seems to stabilize degenerative spondylolisthesis. As expected in the degenerative lumbar spine, the segmental motion of the implanted level in this study was limited and considerably less than normal spinal motion.
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J Spinal Disord Tech · May 2010
Etiology of cervical myelopathy induced by ossification of the posterior longitudinal ligament: determining the responsible level of OPLL myelopathy by correlating static compression and dynamic factors.
Retrospective study. ⋯ Cervical OPLL myelopathy is induced by static factors, dynamic factors, or a combination of both. The discriminate formula for symptomatic cervical OPLL myelopathy contains both ROM and SAC.
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J Spinal Disord Tech · May 2010
Evaluation of a new spine classification system, does it accurately predict treatment?
The Thoracolumbar Injury Severity Score (TLISS) was introduced as a novel classifications system. Its aim was to simplify classification of thoracolumbar fractures, grade their severity in an ordinal manner as a guide to management. This study attempted to validate the TLISS as a guide to management. ⋯ As a management tool, the TLISS seems to consistently suggest treatment consistent with past treatment recommendations. Multilevel contiguous fractures and extension injuries in the ankylosed thoracic spine appear to be the most consistent exceptions to the TLISS guidelines.
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J Spinal Disord Tech · May 2010
Comparative StudyBiomechanical comparison of transpedicular versus extrapedicular vertebroplasty using polymethylmethacrylate.
An in vitro biomechanical study using osteoporotic cadaveric vertebrae. ⋯ Both extrapedicular and transpedicular techniques increased strength but reduced stiffness compared with the intact condition. The extrapedicular technique achieved greater height restoration possibly attributed to its easier access to the fracture site. These biomechanical data provide useful information when selecting an approach for cement injection in vertebroplasty procedures.