Journal of spinal disorders & techniques
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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.
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J Spinal Disord Tech · May 2010
Transpedicular bivertebrae wedge osteotomy and discectomy in lumbar spine for severe ankylosing spondylitis.
A prospective study was performed in 8 patients with severe ankylosing spondylitis. ⋯ In cases of severe ankylosing spondylitis kyphosis with chin-brow vertical angles beyond 90 degrees, a single stage transpedicular bivertebrae wedge osteotomy and discectomy is an effective corrected method of correction.
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J Spinal Disord Tech · May 2010
Case ReportsIntraoperative spinal cord monitoring of C5 palsy after cervical laminoplasty.
Retrospective study of C5 palsy after laminoplasty for cervical myelopathy. ⋯ In the paralysis group, the incidences of waveform pattern change on intraoperative MEP and stenosis of the intervertebral foramen were higher than those in the nonparalysis group.