Material and method Geometric structures of spinal curves of scoliotic patients have been identified. They show plane regions where spinal curves are purely flexed. These regions are linked together by zones of connection, where abduction and axial rotation components, are concentrated. Spine and pelvis of each patient radiographed in upstanding may be synthetized by two rows of indices: one ro...

PURPOSE The purposes of this study were to evaluate the usefulness and limitations of chest radiographs in scoliosis screening and to compare these results with those of thoraco-lumbar standing radiographs (TLSR). MATERIALS AND METHODS During Korean conscription, 419 males were retrospectively examined using both chest radiographs and TLSR to confirm the scoliosis and Cobb angle at the Region...

UNLABELLED Spinal curvatures alter measured stature and may influence the evaluation of skeletal maturity and growth based on stature measurements. METHODS A dataset of calibrated measurements of vertebral positions of 407 radiographs in the frontal plane, together with clinically measured Cobb angles was used to determine the difference between spinal length and spinal height ('height loss')...

Low back dysfunction is associated in many cases with lumbar lordosis, and tilting the pelvis posteriorly is often recommended for therapeutic purposes. The influence of pelvic tilt on the spinal curves has not been studied. The purpose of this study was to use an objective noninvasive method to determine the effect of the pelvic tilt on the spinal curves in the sagittal plane. Thirty-two healt...

OBJECTIVE: The correlation between pain complaints and the severity of the spinal curvature in adolescent idiopathic scoliosis remains controversial. The aim of this studywas to evaluate the presence and intensity of back pain in adolescent idiopathic scoliosis patients at different stages of the disease. METHODS: Sixty-four individuals participated in this study with scoliotic curves (Cobb ang...

BACKGROUND Current treatments for scoliosis have some defects and complications. To study spinal deformities and test novel scoliosis treatments, many animal models of scoliosis have been developed. These models applied a single load to the spine and could not precisely modulate the spinal growth in different dimensions. In this study, we applied posterior tethering in various directions with t...

Twenty-seven children with progressive infantile idiopathic scoliosis have been reviewed after long-term management. Twenty-two children had single thoracic curves which were diagnosed at an early age and treated in a modified Milwaukee brace until the age of ten years when the spine was corrected and fused. The mean correction after operation was 40 per cent of the initial degree of curvature ...

We construct unramified central simple algebras representing 2-torsion classes in the Brauer group of a hyperelliptic curve, and show that every 2-torsion class can be constructed this way when the curve has a rational Weierstrass point or when the base field is C1. In general, we show that a large (but in general proper) subgroup of the 2torsion classes are given by the construction. Examples ...

In this brief note, we prove the following two Artin-Schreier curves are supersin-gular.