Introduction
Alternative Names:
Spinal cord injury; Compression of spinal cord; SCI; Cord compression
The hard bones of the spinal column are protecting the soft tissues of the spinal cord. Nevertheless, the vertebrae can still be injuren, damaged, broken or dislocated in a variety of ways. This causes serious traumatic injury to the spinal cord.
It is the segment of the cord that is injured and the severity of the injury that could determine the level of traumatic injury and which body functions could be compromised or even lost in severe cases. The spinal cord acts as the main information pathway between the brain and the rest of the body. Thus, a spinal cord injury can have serious and significant physiological consequences.
Any kind of physical trauma that causes crushing and compression of the vertebrae in the neck can cause irreversible damage of the spinal cord at the cervical level and below. Paralysis of most of the body including the arms and legs, called quadriplegia, is a very likely result. Road accidents are often responsible for spinal cord damage in the middle back, in the thoracic or lumbar area. This can cause paralysis of the lower trunk and lower extremities – a condition known as paraplegia.
In injuries that penetrate the spinal cord directly, such as gunshot or knife wounds, can sever the spinal cord (completely or partially) and cause lifelong disabilities.
Not all spinal injuries will completely sever the spinal cord. In some cases they cause fractures and compression of the vertebrae, which can result in crushing and destroying the axons. The axons are the extensions of nerve cells that are responsible for transporting signals up and down the spinal cord between the brain and the body.
An injury to the spinal cord can damage a different number (or all) of axons. Some injuries will allow almost complete recovery, while others will most likely result in complete paralysis and lifelong consequences.
Causes
There are several main causes for spinal traumatic injuries. Some of the most common risk factors include:
• Risky physical activities (incl. sports)
• Speeding
• Diving
The spinal cord contains nerves that transport information between the brain and the body. The cord passes through the neck and back and is generally prone to trauma when an excessive force is caused, i.e. road accidents or falling.
Here’s a short list of some of the major causes of trauma of the spine, which can lead to injuries in the spinal cord:
• Physical Assault
• Falls and accidents
• Knife and Gunshot wounds
• Industrial accidents
• Road and motor vehicle accidents
• Sports injuries
A minor injury can damage the spinal cord if the spine is weakened. This is apparent in case of rheumatoid arthritis or osteoporosis. Injury can occur if the spinal canal (which is protecting the spinal cord) has become narrower (a condition known as spinal stenosis) caused by the process of aging.
Also direct injury (bruises and such) can occur to the spinal cord in case thebones and/or disks are weakened. Bone fragments (i.e. from broken vertebrae, also known as spine bones) or fragments of metal (often in a traffic accident or gunshot) can cause serious damage to the spinal cord.
Direct damage can occur in cases where the spinal cord is being pulled, pressed sideways, or compressed. This is often seen in accidents where the head, the neck, or the back has been twisted in an abnormal position during an accident. This can be caused also by an intense chiropractic manipulation.
Bleeding, build-up of fluids or swelling can occur both inside or outside the spinal cord. However this always is within the spinal canal. The build-up of blood or body fluid can cause pressure on the spinal cord and thus cause damage.
Statistics show that most spinal cord trauma mostly affects young, healthy individuals. Men aged 15 to 35 are affected most often. Also, it’s known that death rate tends to be higher in children with spinal injuries.