Spine
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Clinical Trial
Patient preferences and expectations for care: determinants in patients with lumbar intervertebral disc herniation.
Prospective observational cohort. ⋯ Patient expectations, particularly regarding the benefit of nonoperative treatment, are the primary determinant of surgery preference among patients with lumbar intervertebral disc herniation. Demographic, functional status, and prior treatment experience had significant associations with patients' expectations and preferences.
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Multicenter Study Comparative Study
Restoration of thoracic kyphosis after operative treatment of adolescent idiopathic scoliosis: a multicenter comparison of three surgical approaches.
Multicenter analysis of 3 groups of patients who underwent surgical treatment for adolescent idiopathic scoliosis (AIS). OBJECTIVE.: To evaluate 3 surgical approaches to determine the modality that has the greatest influence on improving thoracic kyphosis. ⋯ ASFI is the best method to restore thoracic kyphosis when compared with posterior approaches using only hooks or a hybrid construct in the treatment of thoracic adolescent idiopathic scoliosis.
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Comparative Study
Development of an index to characterize the "invasiveness" of spine surgery: validation by comparison to blood loss and operative time.
Prospective cohort study. ⋯ An "invasiveness" index based on the number of vertebrae decompressed, fused, or instrumented showed the expected associations with both blood loss and surgery duration. This quantitative description of surgery invasiveness may be useful to adjust for surgical variations when making safety comparisons in spine surgery.
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Comparative Study
Biomechanical comparison of a novel C1 posterior locking plate with the harms technique in a C1-C2 fixation model.
A biomechanical testing protocol was used to study atlantoaxial fixation techniques in a human cadaveric model. ⋯ A novel C1 posterior locking plate was designed and tested in a C1-C2 fixation model. The C1 locking plate technique functioned in an equivalent manner to the existing Harms technique. The C1 plate may be a viable alternative that is technically less demanding with decreased surgical risk.
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Retrospective clinical study. ⋯ Our clinical observation suggests that patients with spinal metastases and a high Tokuhashi score benefit from surgical treatment with moderate improvement in sensomotoric function even in a heterogenic collective.