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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Although several studies have documented indirect decompression after oblique lateral interbody fusion (OLIF), limited research exists that directly quantifies the degree of decompression. This study seeks to quantify the degree of indirect decompression achieved by OLIF using magnetic resonance imaging (MRI). ⋯ OLIF provides a significant amount of indirect decompression from L2-L5 including increased anterior and posterior disc height, bilateral foraminal height, bilateral foraminal area, bilateral subarticular recess, and thecal sac area. The proximal adjacent level above an interbody level also shows increased foraminal height and area.
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This study was designed to develop a machine learning (ML) model that predicts future Cobb angle in patients with adolescent idiopathic scoliosis (AIS) using minimal radiographs and simple questionnaires during the first and second visits. ⋯ The ML-based model using items commonly evaluated at the first and second visits accurately predicted future Cobb angles in female patients with AIS.
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After posterior spinal fusion (PSF) for adolescent idiopathic scoliosis (AIS), there is alteration in trunk range of motion (ROM) in the coronal, sagittal and axial planes. Previous studies have shown that ROM decreases with increased number of levels fused, which may affect the ROM between patients who undergo non-selective thoracic fusion (NSF) and selective thoracic fusion (STF) patient groups. This study sought to longitudinally evaluate the ROM of the trunk in patients with AIS who underwent posterior spinal fusion, using surface topography, comparing STF and NSF patient motion at multiple time points postoperatively. ⋯ The coronal, sagittal, and axial ROM as measured by ST demonstrated significant decreases from preoperative to postoperative following PSF; however, this deficit trends towards improvement over time. Our data demonstrates that at two years, NSF has poorer motion than STF patients in all three planes.
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Both thoracic ossification of the posterior longitudinal ligament (T-OPLL) and thoracic disc herniation (TDH) may cause thoracic spinal stenosis (TSS) resulting in thoracic myelopathy. Surgical decompression is the only effective treatment for symptomatic TSS. 360° Circumferential decompression, also called the "cave-in" technique, can safely and effectively treat T-OPLL; however, this procedure has not yet been performed endoscopically. Herein, we report the first case of massive T-OPLL combined with TDH that was treated endoscopically using the "cave-in" technique, with 36 months of follow-up. Further, we review the literature on this subject. ⋯ The endoscopic "cave-in" technique can effectively treat T-OPLL with satisfactory clinical results, and is associated with less trauma and fewer complications than conventional posterior circumferential decompression. The endoscopic "cave-in" technique can be a good surgical option for patients with T-OPLL.
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To determine the association of the ultrasound reflection coefficient index and other clinical parameters to predict curve progression in children with AIS. ⋯ This pilot study showed that curve progression is associated with the Risser sign, KA, and RC index. Other parameters and a more extensive clinical study should be combined to develop a higher-accuracy prediction model.