The precise and accurate segmentation of the vertebral column is essential in the diagnosis and treatment of various orthopedic, neurological, and oncological traumas and pathologies. Segmentation is especially challenging in the presence of pathology such as vertebral compression fractures. In this paper, we propose a method to produce segmentations for osteoporotic compression fractured verte...

OBJECTIVES To test whether the position of lumbosacral dermatomes varies in the presence of transitional vertebrae. MATERIAL AND METHODS Fifty consecutive male patients were tested for thoracolumbar and lumbosacral transitional vertebrae by radiography and for the position of the dermatome gap between the lumbar dermatomes L1, L2, L3, and the sacral dermatomes S2 and S3. The dermatome gap was...

The purpose of this paper is to investigate the comparative geometrical dimensions of Chinese and Western cervical vertebrae. A Chinese neck model, based on MRI/CT scan images and frozen slice images from a 35-year-old male cadaver, was established and compared with literature data and a newlydeveloped Western neck finite element model. Results showed that the geometrical dimensions of Western ...

The Early Cretaceous was a time of dramatic change for sauropod dinosaurs in North America. Between the Late Jurassic-aged Morrison Formation and overlying Early Cretaceous strata, there was a dramatic decline in sauropod diversity. Here, we describe a new sauropod that adds to the diversity of the Early Cretaceous, from strata that can be no older than the early Aptian, (125 Ma) some 25 millio...

The vertebrae of sauropod dinosaurs have distinctive and complex pneumatic features including fossae foramina in the sides their centra. These vary between individuals, serially within even left right single vertebrae. This presents a conundrum because bone is usually least variable material vertebrate body. Blood vessels, however, are much more labile, as can be seen varied occurrence vascular...

purpose many factors such as lumbar instability and spinopelvic alignment are associated with low back pain. our purpose was to analyze the pelvic incidence - one of spinopelvic alignment parameters- and spine instability correlations in patients with chronic low back pain. methods fifty-two patients suffering from chronic low back pain entered this case control study. lateral spine radiography...

introduction: cauda equina secondary to metastatic follicular thyroid cancer of the lumbosacral area is a rare entity.   case report: we report an unusual case of a 52-year-old male who presented with backache, lower limb weakness, and perianal numbness. a ct-scan of the lumbosacral area showed an enhancing mass at the l4, l5 and s1 vertebrae. histopathology after excision revealed a metastatic...

Haemangioma of the vertebrae is believed to be extremely rare and of little clinical importance, because most often it is detected as an incidental radiological finding in patients examined for complaints thought to be related to other diseases. However, haemangiomata of the vertebrae have been found on examination in large necropsy series in a much larger proportion than suggested by clinical ...

Current vertebral fracture prevention measures use Dual-energy X-ray Absorptiometry (DXA) to quantify the density of the vertebrae and subsequently determine the risk of fracture. This modality however only provides information about the projected Bone Mineral Density (BMD) while the shape and spatial distribution of the bone determines the strength of the vertebrae. Quantitative Computed Tomog...