European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
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Observational Study
Development of predictive models for all individual questions of SRS-22R after adult spinal deformity surgery: a step toward individualized medicine.
Health-related quality of life (HRQL) instruments are essential in value-driven health care, but patients often have more specific, personal priorities when seeking surgical care. The Scoliosis Research Society-22R (SRS-22R), an HRQL instrument for spinal deformity, provides summary scores spanning several health domains, but these may be difficult for patients to utilize in planning their specific care goals. Our objective was to create preoperative predictive models for responses to individual SRS-22R questions at 1 and 2 years after adult spinal deformity (ASD) surgery to facilitate precision surgical care. ⋯ To the best of our knowledge, this is the first study to explicitly model the prediction of individual answers to the SRS-22R questionnaire at 1 and 2 years after deformity surgery. The ability to predict individual question responses may prove useful in preoperative counseling in the age of individualized medicine. These slides can be retrieved under Electronic Supplementary Material.
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To investigate whether quantitative T2-times depend on lumbar intervertebral disc (IVD) level. ⋯ Significant level-dependent T2-time differences within several Pfirrmann grades, both for the entire IVD volume and for multiple IVD subregions, were shown in this large cohort study. The T2-time differences between levels existed in both non-degenerated and degenerated IVDs. These findings show the importance of stratifying for lumbar level when quantitative IVD studies are performed using T2-mapping. These slides can be retrieved under Electronic Supplementary Material.
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Previous studies of 4D rasterstereography show a high intra- and interday reliability. However, only few studies validate rasterstereography to conventional X-ray imaging. We utilized EOS X-ray imaging system (EOS Imaging, Paris, France) for accurate 3D spinal modeling and compared the results to parameters obtained by 4D rasterstereography. The aim of the present study was to validate 4D rasterstereography in patients with degenerative disk disease (DDD). ⋯ Our data suggest that rasterstereographic systems are no reliable substitute for X-ray-based imaging systems in patients with degenerative disk disease. EOS imaging was shown to provide reliable and accurate spinal modeling. Based on our results, rasterstereographic imaging should be used with caution for evaluating spinal and pelvic parameters in patients with DDD. These slides can be retrieved under Electronic Supplementary Material.
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To measure and compare the total and normalised tibial nerve movements during forward bending in patients with and without failed back surgery syndrome (FBSS) and persistent leg pain following anatomically successful lumbar decompression surgery and demonstrated no psychological stress. Nerve pathomechanics may contribute to FBSS with persistent leg pain following anatomically successful lumbar decompression surgery. ⋯ This was the first study to quantify the decreased total and normalised tibial nerve mobility in FBSS patients with persistent leg pain when compared with non-FBSS patients following anatomically successful lumbar decompression surgery. Further research could investigate the efficacy of intervention, such as nerve mobilisation in this particular group of patients with failed back surgery syndrome and limited nerve mobility. These slides can be retrieved under Electronic Supplementary Material.
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Clinical Trial
Providence nighttime bracing is effective in treatment for adolescent idiopathic scoliosis even in curves larger than 35°.
Since 2006, the Providence nighttime brace has been used for a conservative treatment for scoliosis. Previous studies comparing the outcomes after full-time bracing and nighttime bracing have reported a comparable outcome with curves < 35°. The aim of this study was to report the outcome after treatment in a cohort of adolescent idiopathic scoliosis patients, with curves between 20° and 45°.