MEDICAL FAQ's
What is the Spinal Cord?
The spinal cord enables your brain to communicate with your body. Up and down
the spinal cord, every second of your life, messages are sent to keep you on the
move. When a spinal cord injury occurs, communication may be severed,
resulting in a loss of function.
What is Spinal Cord Injury?
Spinal cord injury (SCI) occurs when a traumatic event results in damage to
cells within the spinal cord or severs the nerve tracts that relay signals up
and down the spinal cord. The most common types of SCI include contusion
(bruising of the spinal cord) and compression (caused by pressure on the spinal
cord). Other types of injuries include lacerations (severing or tearing of some
nerve fibers, such as damage caused by a gun shot wound), and central cord
syndrome (specific damage to the corticospinal tracts of the cervical region of
the spinal cord). Severe SCI often causes paralysis (loss of control over
voluntary movement and muscles of the body) and loss of sensation and reflex
function below the point of injury, including autonomic activity such as
breathing and other activities such as bowel and bladder control. Other symptoms
such as pain or sensitivity to stimuli, muscle spasms, and sexual dysfunction
may develop over time. SCI patients are also prone to develop secondary medical
problems, such as bladder infections, lung infections, and bed sores.
Is there a cure for Spinal Cord Injury?
Damage to the spinal cord due to an injury can be permanent and currently there
is no cure, however new research proves that spinal cord repair and regeneration
is possible. More and more researchers around the world are confident that
a cure for paralysis could be as close as ten years away. New
breakthroughs and discoveries leading to a cure are imminent.
Is there any treatment?
While recent advances in emergency care and rehabilitation allow many SCI
patients to survive, methods for reducing the extent of injury and for restoring
function are still limited. Immediate treatment for acute SCI includes
techniques to relieve cord compression, prompt (within 8 hours of the injury)
drug therapy with corticosteroids such as methylprednisolone to minimize cell
damage, and stabilization of the vertebrae of the spine to prevent further
injury.
What is the prognosis?
The types of disability associated with SCI vary greatly depending on the
severity of the injury, the segment of the spinal cord at which the injury
occurs, and which nerve fibers are damaged. Most people with SCI regain some
functions between a week and 6 months after injury, but the likelihood of
spontaneous recovery diminishes after 6 months. Rehabilitation strategies can
minimize long-term disability.
What research is being done?
Research on trauma-related disorders such as SCI focuses on increasing
scientific understanding of how changes in molecules, cells, and their complex
interactions determine the outcome of SCI, and finding ways to prevent and treat
these injuries. There is also increasing interest in neural stem and progenitor
cells and their potential application in cell replacement therapies for the
treatment of complex neurological disorders such as SCI.
What is Paraplegia and Quadriplegia?
Paraplegia is the loss of sensation and movement in legs and in part or all of
the trunk, usually resulting from an injury to the spinal cord below the
neck. Quadriplegia (also Tetraplegia) is paralysis of all four limbs (from
the neck down) resulting from injury to the neck. Fractures or compression
of the vertebrae, which cause permanent damage to the spinal cord may lead to
loss of sensation, movement, pain management, bladder and bowel control, as well
as affecting sexual function.
Causes of Spinal Cord Injury
The most common causes of spinal cord injury are car and other motor vehicle
collisions (54.7%), falls (17.7%), and other medical conditions and sports
injuries (27.6%). The injury is usually caused by sudden impact, which
crushes the spine and cord.
What is paralysis?
Partial or complete loss of function, especially when involving the motion or
sensation in a part of the body.
What is spinal cord injury? Quadriplegia and paraplegia?
Lesion of the spinal cord that results in paralysis of certain areas of the
body, along with the corresponding loss of sensation. Paraplegia refers to
paralysis from approximately the waist down and quadriplegia refers to paralysis
from approximately the shoulders down. Most spinal cord injuries result in
loss of sensation and function below the level of injury, including loss
of controlled function of the bladder and bowel.
What is meant by the terms "complete" and "incomplete" injuries?
Complete injuries result in total loss of sensation
and function below the injury level. Incomplete injuries result in partial loss.
"Complete" does not necessarily mean the cord has been severed. Each
of the above categories can occur in paraplegia and quadriplegia.
How is sexuality affected by spinal cord injury?
Sexual function, as in all other human bodily systems, is controlled by
the central nervous system. Thus, any injury to the central nervous system will
affect sexual function. The question is to what extent function and sensation
will be affected with injuries at various levels and degrees of severity. Also,
in what ways do the symptoms manifest themselves in males v. females. As one can
imagine, this is a vast and complex subject that cannot be adequately treated in
just a few paragraphs.
Where should spinal-cord-injured persons go for rehabilitation?
The National Spinal Cord Injury Association (NSCIA at 1-800-962-9629)
maintains a current list of all accredited programs... over 50 in all. Some
factors to consider in choosing a facility:
1. Reputation/word of mouth.
2. Proximity to home, family, friends.
3. Availability of facilities needed/wanted for one's specific rehab objectives.
For example, FES, occupational therapy, attitudes of staff, etc.
What does the spinal cord look like and what does it do?
The cord in humans may be likened to a coaxial cable, about one inch in
diameter, and is a continuation of the brain. It looks like firm, white fat;
nerves extend out from the cord to the muscles, skin and bones, to control
movement, receive sensations and regulate bodily excretions and secretions. The
31 pairs of spinal nerves divide the cord into the following segments: 8
cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal.
What happens when nerve fibers regrow?
The nerve cell body remains intact, and only the "sending" or
"receiving" fibers have to regrow as longer extensions from the nerve
cell body. The peripheral nerves, outside the brain and spinal cord can do this
quite easily. But within the brain and spinal cord there is much impediment to
such regrowth.
What
is a Stem Cell?
All mammals begin as two cells -- sperm and egg -- that combine into a single
cell. This single cell will divide exponentially into specialized cells making
up various organs and systems -- all the tissues of a new organism. Simply
put, a stem cell is an immature cell that can become a different cell, or
perhaps become one of many different cells. Most stem cells also can renew
themselves -- divide -- indefinitely. These two characteristics are what present
a new pathway to repairing damage to the human body caused by trauma,
degeneration and disease.
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