Spine
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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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Multicenter Study
Radiographic predictors for the development of myelopathy in patients with ossification of the posterior longitudinal ligament: a multicenter cohort study.
A multicenter cohort study was performed retrospectively. ⋯ Static and dynamic factors were related to the development of myelopathy in OPLL.
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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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Review Case Reports
Natural killer/T-cell nasal-type lymphoma: unusual primary spinal tumor.
A natural killer/T-cell lymphoma originating in the spine of a 60-year-old man is first reported, along with a brief review of the literature on the topic. ⋯ NK/T-cell lymphomas originated at other sites but nasal cavity/nasopharynx do not present typical clinical features and symptoms in the absence of lymphadenopathy. There are possibilities for misdiagnosis of NK/T-cell lymphoma that originates at other sites. The unfavorable prognosis of this tumor emphasized the need for novel molecular targets and more effective therapies.
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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.