|
Traumatic
Injuries
Traumatic spinal cord injury (TSCI), can be defined as an
acute, traumatic lesion of the neural elements of the spinal
cord which results in temporary or permanent loss of sensation,
motor deficit or bowel/bladder dysfunction. Because these
injuries are usually permanent, they can be devastating in
terms of the high costs of acute and long term care. They
can also be emotionally devastating to the relatively young
persons who are statistically the most frequent victims.
According to recent statistics, about 92% of the traumatic
spinal cord injuries were unintentional or accidental. Motor
vehicle accidents were the single largest cause of TCSI, causing
approximately 53% of all injuries. Falls were second, causing
about 20% of the injuries. About 63% of all TCSIs involved
persons between the ages of 15 and 44.
A traumatic spine injury may be easily overlooked. One recent
study showed that in a series of 300 fractures of the cervical
spine, 100 cases were not diagnosed initially on clinical
or radiological examination. Those delays in diagnosis ranged
from one day to one year.
The degree of spinal cord injury is often hard to determine
immediately following a trauma. Oftentimes, the cord sustains
spinal shock, which causes complete loss of all
reflexes below the area of cord injury. This state can be
temporary and can disappear after a few days. The classification
of the neurological injury is usually made according to the
modified Frankel scale. The modified Frankel scale measures
the injury according to five clinical syndromes associated
with cord injury.
Diagnostic imaging studies like an MRI, CT scan or x-ray
film are used in conjunction with the physical and neurological
examinations to confirm cord injuries. These films are usually
taken in the front and profile views.
Many specific medical treatments have been proposed for TSCI.
Most are aimed at preventing secondary injuries from occurring.
Results from the National Acute Spinal Cord Injury Study (NASCIS
II), recommend the administration of a drug called methylprednisolone.
However, a statistically significant benefit on motor function
was seen when this drug had been administered within the first
8 hours of the trauma.
Other drugs, including purified extracts from bovine brains,
called Gangliosides, have been shown to favor neuronal growth
after a traumatic injury. However, studies have not been complete
on this treatment. Surgery may also be necessary as a method
to stabilize the spine and/or to relieve persistent compression
on the cord, or reduce displacement.
|