Spine
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Randomized Controlled Trial Multicenter Study
Grafton and local bone have comparable outcomes to iliac crest bone in instrumented single-level lumbar fusions.
Prospective multicenter randomized clinical trail. ⋯ At 2-year follow-up, subjects who were randomized to Grafton Matrix and local bone achieved an 86% overall fusion rate and improvements in clinical outcomes that were comparable with those in the ICBG group.
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Multicenter Study Comparative Study
Culture and ethnicity influence outcomes of the Scoliosis Research Society Instrument in adolescent idiopathic scoliosis.
Retrospective comparative study. ⋯ Culture and ethnicity influence SRS-30 outcomes in AIS. Whites reported more pain than Japanese and Koreans. Japanese and Koreans had the lowest appearance scores. Koreans additionally were distinguished by the lowest activity, mental, and total scores. These cultural and ethnic differences must be taken into account when counseling patients with AIS and studying functional outcomes.
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Multicenter Study Comparative Study
Scoliosis Research Society-Schwab adult spinal deformity classification: a validation study.
Inter- and intra-rater variability study. ⋯ Data from this study show that there is excellent inter- and intra-rater reliability and inter-rater agreement for curve type and each modifier. The high degree of reliability demonstrates that applying the classification system is easy and consistent.
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Multicenter Study
Use and outcomes of wound drain in spinal fusion for adolescent idiopathic scoliosis.
A multicenter retrospective analysis. ⋯ More patients tended to receive wound drains than not receive wound drains. Drains did not impact complication rate and drained patients received more blood product. There are no universal criteria for draining and practice patterns vary widely.
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Multicenter Study
Postoperative segmental motion of the unfused spine distal to the fusion in 100 patients with adolescent idiopathic scoliosis.
A cross-sectional study. ⋯ In a group of postoperative patients with adolescent idiopathic scoliosis, evaluation of the distal unfused intervertebral motion showed that preservation of vertebral motion segments allowed greater distribution of functional motion across more levels. With each distal fusion level, motion was significantly increased at the L2-L3, L3-L4, and L4-L5 segmental levels in lateral bending. The relationship between the increased motion and subsequent disc degeneration with a more distal fusion is unknown, but suspected.