Journal of spinal disorders & techniques
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J Spinal Disord Tech · Aug 2013
Comparative StudyPolymethylmethacrylate augmentation of cannulated pedicle screws for fixation in osteoporotic spines and comparison of its clinical results and biomechanical characteristics with the needle injection method.
This is a retrospective study carried out to evaluate the clinical results of patients with osteoporosis and various spinal diseases treated surgically with polymethylmethacrylate (PMMA)-augmented cannulated pedicle screws, and to compare this method with the needle injection technique in terms of the clinical results and fixation strength. ⋯ The technique of cannulated pedicle screws with PMMA augmentation used in this study can be an option for osteoporotic patients with various spinal diseases who require spinal instrumentation.
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J Spinal Disord Tech · Aug 2013
Reamed transacral interbody fusion for L5-s1 pseudoarthrosis: a novel salvage technique in 10 patients.
A retrospective cohort study. ⋯ We report a series of patients who underwent a novel revision technique for symptomatic lumbosacral pseudoarthrosis. Despite the small numbers in this cohort, a salvage technique is presented that permitted fusion as confirmed by computed tomography scan and improved VAS scores in the majority of patients. The data suggest that this technique should be considered as an alternative to the revision anterior or posterior approaches to L5-S1 and merits further investigation.
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J Spinal Disord Tech · Aug 2013
Preliminary results on feasibility of outpatient instrumented transforaminal lumbar interbody fusion.
A retrospective chart review study was performed. ⋯ Although further confirmation is needed, this study discusses the possibility of performing instrumented lumbar interbody fusions with the transforaminal lumbar interbody fusion technique as an outpatient procedure. These results support a future prospective randomized study with a well-defined patient selection criteria.
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J Spinal Disord Tech · Aug 2013
Compressive loading of the spine may affect the spinal canal encroachment of burst fractures.
Spinal canal encroachment of burst fractures under different compressive loading. ⋯ An increase in spinal internal loads resulting from a change in the patient posture may increase the SCE of burst fracture. Measurement of the SCE should take into account the bony fragment distribution of burst fracture.
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J Spinal Disord Tech · Aug 2013
Convex short segment instrumentation and hemi-chevron osteotomies for Putti type 1 thoracic hemivertebrae: a simple treatment option for patients under 5 years old.
A case series depicting the results of a novel surgical technique. ⋯ Transpedicular instrumentation is ideal for early correction in young children. The new posterior approach is much less invasive than the combined approaches or other posterior vertebrectomies and is well tolerated even in very young patients. The fusion segment is kept short. The deformities seem to stop progressing and this can avoid development of severe local deformities and secondary curves.