Spine
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Comparative Study
Major complications and comparison between 3-column osteotomy techniques in 105 consecutive spinal deformity procedures.
A retrospective review. ⋯ Major complications occurred in 35% of 3-column osteotomies and at similar rates for both PSO (38%) and VCR (22%) procedures. The presence of a major complication did not affect the ultimate clinical outcomes at 2 years or more.
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Numerical modeling and simulations of scoliotic spine instrumentation using monoaxial, uniaxial, polyaxial, and multiple-degrees-of-freedom (6DOF) postloading pedicle screws. ⋯ The bone-screw loads of different screws were significantly different. The descending order of bone-screw loads was monoaxial, uniaxial, polyaxial, and 6DOF screws. For patients with large and stiff spinal deformities or for patients with compromised bone quality, screws with more degrees of freedom offer better perspective to reduce bone-screw connection failure.
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A retrospective chart review. ⋯ CVJ TB can severely damage the odontoid process, resulting in atlantoaxial dislocation. In these patients, surgery restores and maintains the craniocervical alignment and has a predictable outcome compared with conservative therapy. Pathological odontoid fractures have the potential to go into nonunion. Odontoid process once destroyed completely is rarely restored after antibiotic therapy.
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Case Reports
Cervical neurofibromatosis with tetraplegia: management by cervical suspensory traction.
A case report. ⋯ Cervical suspensory traction is a viable and safe adjunct technique for applying gradual and sustained effort to maximize postoperative correction in the treatment of NF-1 patients with severely rigid and large curves. This report should contribute to expanding the alternative method for the staged treatment strategy to complex abnormalities.
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A cross-sectional magnetic resonance imaging (MRI) study. ⋯ Herniations were most likely in the subjects with recent onset or persistent (3-yr period) low back symptoms, although they were also detected in subjects with no symptoms. The clinical relevance of herniations on MRI remains to be evaluated in the context of symptoms.