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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The objective of this systematic review is to present a comprehensive summary of existing research on the use of 3D printing in spinal surgery. ⋯ 3D printing in spine surgery, a rapidly growing area of research, is predominantly used for creating drill guides for screw insertion, anatomical models, and innovative implants, enhancing clinical outcomes and reducing operative time. While cost-efficiency remains uncertain due to insufficient data, some 3D printing applications, like pedicle screw drill guides, are already widely accepted and routinely used in hospitals.
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Comparative Study
Adolescent vs. Young Adult Idiopathic Scoliosis patients: how different are their two year postoperative radiographic and clinical outcomes?
To compare the long-term outcomes among AIS (10-18 years) and young AdIS (YAdIS) (19-40 years) patients with minimum 2 year follow up. ⋯ Despite differences in operative characteristics, idiopathic scoliosis (IS) patients who underwent corrective surgery at a younger age had comparable PROMs and 2 year outcomes to older patients. Corrective fusion surgery is safe and effective in both adolescents and young adults and may avoid the higher complication rates seen in older adults.
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Vertebral Hounsfield unit values on computed tomography scan (CT values) have been found to be correlated with bone density measured using dual-energy X-ray absorptiometry. We hypothesized that low preoperative CT values are risk factors for early loss of correction after percutaneous posterior spinal fixation (PPSF). This study aimed to evaluate the usefulness of measuring preoperative CT values. ⋯ CT values can predict progressive loss of correction after PPSF.
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Comparative Study Observational Study
The effect of degenerative scolioisis on segmental thoracolumbar sagittal alignment compared to age- and pelvic incidence-matched reference values.
In asymptomatic subjects, variations of sagittal alignment parameters according to age and pelvic incidence (PI) has been reported. The aim of this observational study was to describe thoraco-lumbar sagittal alignment in patients with degenerative scoliosis and to compare them to asymptomatic individuals, seeking for the specific effect of deformity in similar age and PI groups. ⋯ This observational study highlights specific thoraco-lumbar sagittal alignment adaptations in degenerative scoliosis, matched on age and PI. Beyond the decrease in LL due to aging, degenerative scoliosis leads to a distal migration of the TLIP, an increase in the number of vertebrae in TK and a decrease in LL. This phenomenon was linked to kyphosis at the thoraco-lumbar junction due to scoliosis and was more important in high PI.