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This paper proposes an anatomical parameter, the pelvic incidence, as the key factor for managing the spinal balance. Pelvic and spinal sagittal parameters were investigated for normal and scoliotic adult subjects. The relation between pelvic orientation, and spinal sagittal balance was examined by statistical analysis. A close relationship was observed,(More)
Pelvis and spinal curves were studied with an angular parameter typical of pelvis morphology: pelvic incidence. A significant chain of correlations between positional pelvic and spinal parameters and incidence is known. This study investigated standards of incidence and a predictive equation of lordosis from selective pelvic and spinal individual(More)
The anatomic pelvic parameter "incidence" – the angle between the line perpendicular to the middle of the sacral plate and the line joining the middle of the sacral plate to the center of the bicoxo-femoral axis – has been shown to be strongly correlated with the sacral slope and lumbar lordosis, and ensures the individual an economical standing position.(More)
Reliability and reproducibility of two radiological pelvic parameters are tested: thickness (length of the segment defined by the middle of the upper endplate of the sacrum to the middle of the bi-coxo-femoral axis) and pelvic incidence (angle defined by the perpendicular line to the centre of the upper endplate of the sacrum and the thickness line). These(More)
The authors have utilized a computer for a spatial analysis of deformities of the spine using antero-posterior and lateral radiographs. The posterior limits of the sacral plateau and the centre of each vertebral plateau was demarcated on the antero-posterior radiograph. The posterior margin of each vertebra was demarcated on the lateral radiograph. With(More)
The importance of the sacral pelvic incidence (SPI) in relation to individual variations of sagittal spinal curvature has become well-recognised. We attempted to determine the relationship between SPI and acetabular orientation. The three-dimensional coordinates of 47 homologous points were observed on 51 adult anatomical pelvises (26 female and 25 male).(More)
We compare adult and intact neonatal pelves, using a pelvic sagittal variable, the angle of sacral incidence, which presents significant correlations with vertebral curvature in adults and plays an important role in sagittal balance of the trunk on the lower limbs. Since the lumbar curvature develops in the child in association with gait acquisition, we(More)
This multicentre, randomised, open trial compared the efficacy and safety/acceptability of calcium nadroparin, a non-steroidal anti-inflammatory drug, naproxen, in the treatment of superficial venous thrombosis of the lower limbs, in 117 patients. Calcium nadroparin was given at two dosage regimens: a fixed dose (daily subcutaneous injection of 0.6 ml, i.e.(More)
Scoliotic curvatures can only be assessed through three-dimensional (3D) procedures. Measurement of the axial vertebral rotation appears to be of primary importance for such techniques. Nevertheless, traditional methods are based only on 2D data, obtained through antero-posterior radiographic projections of the spine. A 3D method is described in this study,(More)