Flashcards in Back Blue Boxes Deck (104)
What is a common metabolic bone disease that is often detected during routine radiographic studies?
Vertebral body osteoporosis
What results from a net demineralization of the bones caused by a disruption of the normal balance of calcium deposition and resorption?
Osteoporosis affects which areas of the skeleton the most?
neck of the femurbodies of the vertebraemetacarpalsradius
Vertical striping on radiographs of the vertebral column indicates what?
loss of the horizontal supporting trabeculae and thickening of vertical struts
What is the general name for posterior concave curvature of the spine?
What is the general name for anterior concave curvature of the spine?
Surgical excision of one or more spinous processes and the adjacent supporting vertebral laminae
Performed surgically to gain access to the vertebral canal, providing exposure of the spinal cord
Often performed to relieve pressure on the spinal cord or nerve roots cuased by a tumor, herniated IV disc, or bony hypertrophy
Which vertebrae can be dislocated in neck injuries with less force than is required to fracture them?
Slight dislocation of the cervical vertebrae can occur without damaging the spinal cord because of what?
large vertebral canal in the cervical region
Stage I cervical vertebrae dislocation
Stage II cervical vertebrae dislocation
anterior subluxation with 25% anterior translation
Stage III cervical vertebrae dislocation
Stage IV cervical vertebrae dislocation
Bony ring, with two wedge-shaped lateral masses, connected by a relatively thin anterior and posterior arches and a transverse ligament
A Jefferson or burst fracture is fracture of which vertebrae?
Vertical forces, as would result from striking the bottom of a pool in a diving accident, can easily fracture which vertebrae
Spinal cord injury is more likely with a C1 fracture if what has also been ruptured?
One of the most common injuries of the cervical vertebrae (up to 40%)
fratures of the vertebral arch of the axis
Bony column formed by the superior and inferior articular processes
Fracture in the pars interarticularis of the axis is called?
traumatic spondylolysis of C2
A traumatic spondylolysis of C2 most often occurs as a result of what?
hyperextension of the head on the neck (whiplash)
How was hyperextension of the head and neck used to kill people?
execution of criminals by hanging (hangman's fracture)
Paralysis of all four limbs
Fracture that can result from a horizontal blow to the head or as a complication of osteopenia (40-50% of axis injuries)
fractures of the dens
Narrowing of the vertebral formane in one or more lumbar vertebrae
Lumbar spinal nerves ______ in size as the vertebral column descends, but the IV foramen ______ in size
When the developmental costal element of C7 becomes abnormally enlarged in 1-2% of people