14.2.1 Background properties: 'background-color', 'background-image', 'background-repeat', 'background-attachment', 'background-position', and 'background'. This property sets the background color of an element, either a <color> value or the keyword 'transparent', to make the underlying colors shine through.
1 A spiral fracture happens when the break spirals around the bone, which can happen if the bone is twisted. 2  A compression fracture happens when vertebrae in the spinal column are pushed together in an accident or because of osteoporosis.
This is reported in patients who fall asleep in a drunken or drug-induced stupor with the arm over a chair. It also can occur in honeymooners. Fracture of the humerus is a common cause of radial neuropathy due to compression or secondary laceration of the nerve as it wraps around the humerus near the spiral groove. Radial neuropathy has also been reported in wheelchair users, when the spiral groove of the humerus is compressed on a hard wheelchair surface.