The literature describes the presence of intra-articular structures in the zygapophyseal (facet) joint (Bogduk & Engel 1984, Bogduk 1997). The largest of these structures is attached via synovium to the inner surface of the superior and inferior capsules. They project up to 5mm into the joint space. The apex of these structures is wedge-shaped and consists of densely packed collagen. Their func...

Spatial coherence of the undulator radiation in the horizontal direction is measured by a wedge-shaped crystal interferometer. The Borrmann effect, the effect of the angular divergence of the incidence and the wavefront matching of the collimating asymmetric diffractions with the interferometer are discussed to estimate the coherence factor. The spatial coherence length of 145 microm is experim...

The liver is the largest abdominal organ, weighing approximately 1500g and extends from the fifth intercostal space to the right costal margin. It is wedge shaped, its apex reaching the left midclavicular line in the fifth intercostal space. The liver is attached to the undersurface of the diaphragm by suspensory ligaments which enclose a “bare area”, the only part of its surface without a peri...

We study the wavelength and polarization dependent plasmon resonances of single silver and gold nanorods, triangles, cubes, and dimers with a novel single particle spectroscopy method (RotPOL). In RotPOL, a rotating wedge-shaped polarizer encodes the full polarization information of each particle within one image. This reveals the symmetry of the particles and their plasmon modes, allows analyz...

BACKGROUND Short-segment U-shaped pedicle screw fixation has been widely used to treat thoracolumbar burst fracture. Some studies have reported the disadvantages of traditional U-shaped pedicle screw, which included a relatively high rate of adjacent segment degeneration and screw failure, including screw pullout and breakage. The purpose of this study was to assess the efficacy of open reducti...

FIGURE 1 : Chest x-ray film before treatment, showing cardiac enlargement and pulmonary congestion. There is pleural fluid on both sides, and a wedge-shaped shadow in the right mid-lung extending from the mediastinal shadow to the lateral thorax wall. FIGURE 2 : Chest x-ray film nine days later, after treatment with digitalis and diuretics. The “tumor” has disappeared, but there still remains a...

A 18-year-old male patient's case was diagnosed as Degos'disease with pathognomonic skin lesions, accompanied by small bowel perforation, and reported here. Skin histopothological test show that the typical wedge-shaped necrobiosis and lymphocyte inflammatory infiltration. Vessels showed narrowing and thrombosis, with lymphocyte infiltration. Degos' disease is a systemic necrotizing vasculitis....