Spine
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An in vitro biomechanical study. ⋯ We have designed the TAAS for correcting atlantoaxial instability arising from C1-C2 anterior decompression procedures. The unique aspect of the TAAS is that it restores, to a great extent, the C1-C2 motion that is lost during current stabilization procedures.
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Randomized Controlled Trial Comparative Study
Adding chiropractic manipulative therapy to standard medical care for patients with acute low back pain: results of a pragmatic randomized comparative effectiveness study.
Randomized controlled trial. ⋯ The results of this trial suggest that CMT in conjunction with SMC offers a significant advantage for decreasing pain and improving physical functioning when compared with only standard care, for men and women between 18 and 35 years of age with acute LBP.
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Multicenter Study Clinical Trial
Next generation of growth-sparing techniques: preliminary clinical results of a magnetically controlled growing rod in 14 patients with early-onset scoliosis.
Prospective nonrandomized study. ⋯ Preliminary results indicated MCGR was safe and provided adequate distraction similar to standard GR. DR achieved better initial curve correction and greater spinal height during distraction compared with SR. No major complications were observed during the follow-up.
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Comparative Study
The effect of age on cervical sagittal alignment: normative data on 100 asymptomatic subjects.
Retrospective study. ⋯ The distances between the plumb lines from C2 and C7 were maintained but C2-C7 sagittal angle increased with aging.
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Prospective cohort. ⋯ Repeated dual-energy x-ray absorptiometry was able to elucidate the biological process of bone graft remodeling in the intertransverse fusion mass. An active bone remodeling process was quantified with profound resorption or demineralization of the graft during the first 6 months, followed by subsequent bone apposition and restoration of BMD at the final follow-up. No difference in trend in BMD change between patients with and without fusion could be established; however, no firm conclusions can be drawn from small patient numbers.