Journal of spinal disorders & techniques
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J Spinal Disord Tech · Apr 2008
Controlled Clinical TrialHydroxyapatite-bioactive glass ceramic composite as stand-alone graft substitute for posterolateral fusion of lumbar spine: a prospective, matched, and controlled study.
Prospective, matched, and controlled study. ⋯ Level 1.
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J Spinal Disord Tech · Apr 2008
Comparative StudyBiomechanical comparison of anterior lumbar interbody fusion and transforaminal lumbar interbody fusion.
An in vitro biomechanical comparison of 2 fusion techniques, anterior lumbar interbody fusion (ALIF) and transforaminal lumbar interbody fusion (TLIF), on cadaveric human spines. ⋯ Both ALIF and TLIF procedures combined with posterior instrumentation significantly improved construct stability of intact spinal motion segments. However, there was no statistical difference between these 2 fusion techniques. The 2 ALIF approaches (lateral and anterior) also had similar construct stability even though anterior longitudinal ligament severing significantly reduced stability.
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J Spinal Disord Tech · Apr 2008
Radiation exposure to the surgeon and the patient during kyphoplasty.
Prospective study of patients who underwent single or multilevel kyphoplasty for vertebral fractures. ⋯ Without eye or hand protection, the total radiation exposure dose to these areas would exceed the occupational exposure limit after 300 cases per year. Surgeons should wear lead lined glasses and keep their hands out of the radiation beam.
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J Spinal Disord Tech · Apr 2008
Increasing bending strength and pullout strength in conical pedicle screws: biomechanical tests and finite element analyses.
Comparative in vitro biomechanical study and finite element analysis. ⋯ Conical screws effectively increased the bending strength and pullout strength simultaneously. The finite element analyses reliably predicted the results of the mechanical tests.
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J Spinal Disord Tech · Apr 2008
Clinical TrialSuccess of lumbar microdiscectomy in patients with modic changes and low-back pain: a prospective pilot study.
Prospective case controlled. ⋯ Therapeutic II.