What is the most common mechanism of injury for severe cervical spine injuries?
Trauma is the most common cause of cervical injury, and this can include motor vehicle accidents, falls, penetrating or blunt trauma, sports-related or diving injuries. [4][5] Nontraumatic causes can include compression fractures from osteoporosis, arthritis, or cancer and inflammation of the spinal cord.
What is an axial load of the spine?
Compressive force is exerted vertically to the spinal column with neck in the neutral position (30-degree flexion) at the time of injury, resulting in pure axial loading injury and compressive failure of the anterior column. …
Why does the position of axial loading put the cervical spine at risk for dislocation and fracture?
Axial Loading However, the vertebrae, intervertebral discs, and supporting ligamentous structures can be injured when contact occurs on the top or crown of the helmet with the head, neck, and trunk positioned in such a way that forces are transmitted along the vertical axis of the cervical spine.
How much force does it take to break a cervical spine?
It is hard to quantify how much force it would take to break a human spine, Bydon said. But studies have shown, he added, that it would require a force greater than 3,000 newtons to fracture the cervical spine. That’s equal to the impact created by a 500-pound car crashing into a wall at 30 miles per hour.
Why can injuries at c1 or C2 be fatal?
If the spinal cord becomes compressed at the C2 level, it can cause pain, tingling, numbness, and/or weakness in the arms or legs, loss of bowel and/or bladder control, and other problems. Severe cases of spinal cord injury at C2 can be fatal because breathing and other critical body functions may be impaired or stop.
What is axial load injury?
Most cervical spinal cord injuries are the result of axial loading (force directed through the top of the head and through the spine) forcing the head into hyperflexion and/or rotation. This type of mechanism may result in a fracture of dislocation of one or more of the cervical vertebrae.
What does axial loading mean?
Axial loading is defined as applying a force on a structure directly along an axis of the structure.
What is axial loading?
Axial loading is defined as applying a force on a structure directly along an axis of the structure. From: Basic Finite Element Method as Applied to Injury Biomechanics, 2018.
What is axial loading test?
Axial load tests were performed to evaluate the confinement effectiveness of high strength spiral reinforcement in concrete compression members. For a given concrete cover thickness, these smaller diameter members have a greater volume fraction of spiral reinforcement as compared to larger diameter members.